TY  - JOUR
AU  - Nikolić, Nebojša D.
AU  - Lović, Jelena
AU  - Maksimović, Vesna
AU  - Živković, Predrag M.
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5202
AB  - The formation of tin dendritic nanostructures by electrolysis from the alkaline electrolytehas been investigated. Morphology and structure of Sn dendrites produced applying both potentiostatic and galvanostatic regimes of the electrolysis are characterized by SEM and XRD, respectively. Depending on the applied cathodic potentials, three types of Sn dendrites were obtained: (a) needle like and spear-like, (b) fern-like, and (c) stem-like dendrites. The very branchy dendrites with branches of the prismatic shape obtained by the galvanostatic regime of electrolysis represented anovel type of Sn dendrites, not previously reported in the literature. To explain the formation ofvarious dendritic forms, correlation with the polarization characteristics for this electrodepositionsystem is considered. The needle-like and the spear-like dendrites represented monocrystals of(200),(400) preferred orientation, the fern-like dendrites exhibited the predominant (220),(440) preferredorientation, while in the stem-like particles Sn crystallites were oriented to a greater extent inthe (440) crystal plane than in other planes. The galvanostatically synthesized Sn particles possessed the strong (200),(400) preferred orientation. The strong influence of parameters and regimes ofelectrodeposition on structural characteristics of Sn dendrites is explained by the fundamental lawsof electrocrystallization taking into consideration the concept of slow-growing and fast-growingcrystal planes.
PB  - MDPI
T2  - Metals
T1  - Morphology and Structure of Electrolytically Synthesized Tin Dendritic Nanostructures
IS  - 7
SP  - 1201
VL  - 12
DO  - 10.3390/met12071201
ER  - 

@article{
author = "Nikolić, Nebojša D. and Lović, Jelena and Maksimović, Vesna and Živković, Predrag M.",
year = "2022",
abstract = "The formation of tin dendritic nanostructures by electrolysis from the alkaline electrolytehas been investigated. Morphology and structure of Sn dendrites produced applying both potentiostatic and galvanostatic regimes of the electrolysis are characterized by SEM and XRD, respectively. Depending on the applied cathodic potentials, three types of Sn dendrites were obtained: (a) needle like and spear-like, (b) fern-like, and (c) stem-like dendrites. The very branchy dendrites with branches of the prismatic shape obtained by the galvanostatic regime of electrolysis represented anovel type of Sn dendrites, not previously reported in the literature. To explain the formation ofvarious dendritic forms, correlation with the polarization characteristics for this electrodepositionsystem is considered. The needle-like and the spear-like dendrites represented monocrystals of(200),(400) preferred orientation, the fern-like dendrites exhibited the predominant (220),(440) preferredorientation, while in the stem-like particles Sn crystallites were oriented to a greater extent inthe (440) crystal plane than in other planes. The galvanostatically synthesized Sn particles possessed the strong (200),(400) preferred orientation. The strong influence of parameters and regimes ofelectrodeposition on structural characteristics of Sn dendrites is explained by the fundamental lawsof electrocrystallization taking into consideration the concept of slow-growing and fast-growingcrystal planes.",
publisher = "MDPI",
journal = "Metals",
title = "Morphology and Structure of Electrolytically Synthesized Tin Dendritic Nanostructures",
number = "7",
pages = "1201",
volume = "12",
doi = "10.3390/met12071201"
}

Nikolić, N. D., Lović, J., Maksimović, V.,& Živković, P. M.. (2022). Morphology and Structure of Electrolytically Synthesized Tin Dendritic Nanostructures. in Metals
MDPI., 12(7), 1201.
https://doi.org/10.3390/met12071201

Nikolić ND, Lović J, Maksimović V, Živković PM. Morphology and Structure of Electrolytically Synthesized Tin Dendritic Nanostructures. in Metals. 2022;12(7):1201.
doi:10.3390/met12071201 .

Nikolić, Nebojša D., Lović, Jelena, Maksimović, Vesna, Živković, Predrag M., "Morphology and Structure of Electrolytically Synthesized Tin Dendritic Nanostructures" in Metals, 12, no. 7 (2022):1201,
https://doi.org/10.3390/met12071201 . .

TY  - JOUR
AU  - Lović, Jelena
AU  - Bogdanović, Aleksandra
AU  - Tadić, Vanja
AU  - Mijin, Dušan
AU  - Vuković, Dragan
AU  - Petrović, Slobodan D.
AU  - Avramov-Ivić, Milka
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5191
AB  - Duloxetine hydrochloride (DUL) is effective in treating depression, and was examined for electroanalytical purposes. The DULstandard was investigated by cyclic voltammetry (CV) and determined using differential pulse voltammetry (DPV) via its electrooxidationat the Au electrode in 0.05 M NaHCO3. DPV showed a linear dependency of the anodic peak currents vs DUL standardconcentrations in the range from 0.1 to 3.33 μg ml−1 with the values of the limit of detection (LOD) and the limit of quantification(LOQ): 0.133 and 0.667 μg ml−1, respectively. Using the constructed and validated calibration curve, the values of unknown DULconcentrations in both Taita® tablets and in human serum spiked with the standard were determined. The number of protons andelectrons transferred was calculated and possible reaction mechanisms taking place on the surface of both electrodes wereproposed. The Au electrode exhibited a better sensitivity and a wider range of current vs concentration linear dependency for DULquantitative determination than the GC electrode. The study of DUL degradation showed that at the Au and GC electrodes, after4.5 h of potential cycling, degradation occurs, giving formaldehyde as a product, which was confirmed by high performance liquidchromatography (HPLC)
PB  - The Electrochemical Society
T2  - Journal of The Electrochemical Society
T1  - Electrochemical Behavior of Duloxetine Hydrochloride at Au and GC Solid Electrodes: Its Quantitative Determination and Degradation
IS  - 7
SP  - 076507
VL  - 169
DO  - 10.1149/1945-7111/ac7e74
ER  - 

@article{
author = "Lović, Jelena and Bogdanović, Aleksandra and Tadić, Vanja and Mijin, Dušan and Vuković, Dragan and Petrović, Slobodan D. and Avramov-Ivić, Milka",
year = "2022",
abstract = "Duloxetine hydrochloride (DUL) is effective in treating depression, and was examined for electroanalytical purposes. The DULstandard was investigated by cyclic voltammetry (CV) and determined using differential pulse voltammetry (DPV) via its electrooxidationat the Au electrode in 0.05 M NaHCO3. DPV showed a linear dependency of the anodic peak currents vs DUL standardconcentrations in the range from 0.1 to 3.33 μg ml−1 with the values of the limit of detection (LOD) and the limit of quantification(LOQ): 0.133 and 0.667 μg ml−1, respectively. Using the constructed and validated calibration curve, the values of unknown DULconcentrations in both Taita® tablets and in human serum spiked with the standard were determined. The number of protons andelectrons transferred was calculated and possible reaction mechanisms taking place on the surface of both electrodes wereproposed. The Au electrode exhibited a better sensitivity and a wider range of current vs concentration linear dependency for DULquantitative determination than the GC electrode. The study of DUL degradation showed that at the Au and GC electrodes, after4.5 h of potential cycling, degradation occurs, giving formaldehyde as a product, which was confirmed by high performance liquidchromatography (HPLC)",
publisher = "The Electrochemical Society",
journal = "Journal of The Electrochemical Society",
title = "Electrochemical Behavior of Duloxetine Hydrochloride at Au and GC Solid Electrodes: Its Quantitative Determination and Degradation",
number = "7",
pages = "076507",
volume = "169",
doi = "10.1149/1945-7111/ac7e74"
}

Lović, J., Bogdanović, A., Tadić, V., Mijin, D., Vuković, D., Petrović, S. D.,& Avramov-Ivić, M.. (2022). Electrochemical Behavior of Duloxetine Hydrochloride at Au and GC Solid Electrodes: Its Quantitative Determination and Degradation. in Journal of The Electrochemical Society
The Electrochemical Society., 169(7), 076507.
https://doi.org/10.1149/1945-7111/ac7e74

Lović J, Bogdanović A, Tadić V, Mijin D, Vuković D, Petrović SD, Avramov-Ivić M. Electrochemical Behavior of Duloxetine Hydrochloride at Au and GC Solid Electrodes: Its Quantitative Determination and Degradation. in Journal of The Electrochemical Society. 2022;169(7):076507.
doi:10.1149/1945-7111/ac7e74 .

Lović, Jelena, Bogdanović, Aleksandra, Tadić, Vanja, Mijin, Dušan, Vuković, Dragan, Petrović, Slobodan D., Avramov-Ivić, Milka, "Electrochemical Behavior of Duloxetine Hydrochloride at Au and GC Solid Electrodes: Its Quantitative Determination and Degradation" in Journal of The Electrochemical Society, 169, no. 7 (2022):076507,
https://doi.org/10.1149/1945-7111/ac7e74 . .

TY  - JOUR
AU  - Lović, Jelena
AU  - Bogdanović, Aleksandra
AU  - Mijin, Dušan
AU  - Vuković, Dragan
AU  - Petrović, Slobodan
AU  - Avramov-Ivić, Milka
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5197
AB  - Ticagrelor hydrochloride (TCG) is effective in platelet inhibition and useful for preventing cardiovascular death, myocardial infarction, or ischaemic stroke. The drug standard was investigated by cyclic voltammetry (CV) and quantitatively determined using differential pulse voltammetry (DPV) via its electrooxidation at Au electrode in 0.05 M NaHCO3. DPV showed a linear dependency of the anodic peak currents vs. TCG standard concentrations in the range from 3 x 10-7 mol l-1 to 10-5 mol l-1 with the values of the limit of detection (LOD) and the limit of quantification: 0.288 μmol l-1 and 0.96 μmol l-1, respectively. Using the constructed and validated calibration curve, the values of unknown ticagrelor concentrations in Ticagrex® tablets and in human serum spiked with the standard were determined. Mechanistic study suggests that the oxidation proceeds at sulfur atom by removal of one electron as the rate determining step. In the next, fast step, formed radical cation loose another electron and sulfoxide is formed (with water molecule as nucleophile). The study of TCG degradation showed that at the Au, after 4.5 h of potential cycling, degradation occurs, which was confirmed by UV spectroscopy.
PB  - ESG
T2  - International Journal of Electrochemical Science
T1  - Ticagrelor Determination via Its Electrooxidation as the Standard, in Tablets and the Spiked Human Serum at Au Solid Electrode
SP  - 220928
VL  - 17
DO  - 10.20964/2022.09.36
ER  - 

@article{
author = "Lović, Jelena and Bogdanović, Aleksandra and Mijin, Dušan and Vuković, Dragan and Petrović, Slobodan and Avramov-Ivić, Milka",
year = "2022",
abstract = "Ticagrelor hydrochloride (TCG) is effective in platelet inhibition and useful for preventing cardiovascular death, myocardial infarction, or ischaemic stroke. The drug standard was investigated by cyclic voltammetry (CV) and quantitatively determined using differential pulse voltammetry (DPV) via its electrooxidation at Au electrode in 0.05 M NaHCO3. DPV showed a linear dependency of the anodic peak currents vs. TCG standard concentrations in the range from 3 x 10-7 mol l-1 to 10-5 mol l-1 with the values of the limit of detection (LOD) and the limit of quantification: 0.288 μmol l-1 and 0.96 μmol l-1, respectively. Using the constructed and validated calibration curve, the values of unknown ticagrelor concentrations in Ticagrex® tablets and in human serum spiked with the standard were determined. Mechanistic study suggests that the oxidation proceeds at sulfur atom by removal of one electron as the rate determining step. In the next, fast step, formed radical cation loose another electron and sulfoxide is formed (with water molecule as nucleophile). The study of TCG degradation showed that at the Au, after 4.5 h of potential cycling, degradation occurs, which was confirmed by UV spectroscopy.",
publisher = "ESG",
journal = "International Journal of Electrochemical Science",
title = "Ticagrelor Determination via Its Electrooxidation as the Standard, in Tablets and the Spiked Human Serum at Au Solid Electrode",
pages = "220928",
volume = "17",
doi = "10.20964/2022.09.36"
}

Lović, J., Bogdanović, A., Mijin, D., Vuković, D., Petrović, S.,& Avramov-Ivić, M.. (2022). Ticagrelor Determination via Its Electrooxidation as the Standard, in Tablets and the Spiked Human Serum at Au Solid Electrode. in International Journal of Electrochemical Science
ESG., 17, 220928.
https://doi.org/10.20964/2022.09.36

Lović J, Bogdanović A, Mijin D, Vuković D, Petrović S, Avramov-Ivić M. Ticagrelor Determination via Its Electrooxidation as the Standard, in Tablets and the Spiked Human Serum at Au Solid Electrode. in International Journal of Electrochemical Science. 2022;17:220928.
doi:10.20964/2022.09.36 .

Lović, Jelena, Bogdanović, Aleksandra, Mijin, Dušan, Vuković, Dragan, Petrović, Slobodan, Avramov-Ivić, Milka, "Ticagrelor Determination via Its Electrooxidation as the Standard, in Tablets and the Spiked Human Serum at Au Solid Electrode" in International Journal of Electrochemical Science, 17 (2022):220928,
https://doi.org/10.20964/2022.09.36 . .

TY  - JOUR
AU  - Stevanović, Maja
AU  - Stevanović, Sanja
AU  - Mihailović, M.
AU  - Kiprovski, B.
AU  - Bekavac, G.
AU  - Mikulić-Petkovsek, M.
AU  - Lović, Jelena
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4577
AB  - Biochemistry coupled with electrochemical approach is employed in a fast, relatively simple, yet highly precise detection of a plant extract antioxidant properties. Antioxidant capacity of dark red corn grains was investigated electrochemically using cyclic voltammetry (CV) on glassy carbon electrode (GC). The linear polarization resistance (LPR) measurements were performed for examining the corrosion inhibitive behavior of polyphenolics on mild steel. The consistent positive correlation (r=0.99) was established between total phenolic and flavonoid contents obtained by CV measurements and spectrophotometric antioxidant assay (DPPH test). Both analyses confirm the high antioxidant activity of tested pigments. Determination of the corrosion inhibition efficiency revealed that the red corn pigments have anti-corrosion effect on mild steels.
T2  - Revista de Chimie
T1  - Antioxidant capacity of dark red corn – Biochemical properties coupled with electrochemical evaluation
EP  - 41
IS  - 6
SP  - 31
VL  - 71
DO  - 10.37358/RC.20.6.8167
ER  - 

@article{
author = "Stevanović, Maja and Stevanović, Sanja and Mihailović, M. and Kiprovski, B. and Bekavac, G. and Mikulić-Petkovsek, M. and Lović, Jelena",
year = "2020",
abstract = "Biochemistry coupled with electrochemical approach is employed in a fast, relatively simple, yet highly precise detection of a plant extract antioxidant properties. Antioxidant capacity of dark red corn grains was investigated electrochemically using cyclic voltammetry (CV) on glassy carbon electrode (GC). The linear polarization resistance (LPR) measurements were performed for examining the corrosion inhibitive behavior of polyphenolics on mild steel. The consistent positive correlation (r=0.99) was established between total phenolic and flavonoid contents obtained by CV measurements and spectrophotometric antioxidant assay (DPPH test). Both analyses confirm the high antioxidant activity of tested pigments. Determination of the corrosion inhibition efficiency revealed that the red corn pigments have anti-corrosion effect on mild steels.",
journal = "Revista de Chimie",
title = "Antioxidant capacity of dark red corn – Biochemical properties coupled with electrochemical evaluation",
pages = "41-31",
number = "6",
volume = "71",
doi = "10.37358/RC.20.6.8167"
}

Stevanović, M., Stevanović, S., Mihailović, M., Kiprovski, B., Bekavac, G., Mikulić-Petkovsek, M.,& Lović, J.. (2020). Antioxidant capacity of dark red corn – Biochemical properties coupled with electrochemical evaluation. in Revista de Chimie, 71(6), 31-41.
https://doi.org/10.37358/RC.20.6.8167

Stevanović M, Stevanović S, Mihailović M, Kiprovski B, Bekavac G, Mikulić-Petkovsek M, Lović J. Antioxidant capacity of dark red corn – Biochemical properties coupled with electrochemical evaluation. in Revista de Chimie. 2020;71(6):31-41.
doi:10.37358/RC.20.6.8167 .

Stevanović, Maja, Stevanović, Sanja, Mihailović, M., Kiprovski, B., Bekavac, G., Mikulić-Petkovsek, M., Lović, Jelena, "Antioxidant capacity of dark red corn – Biochemical properties coupled with electrochemical evaluation" in Revista de Chimie, 71, no. 6 (2020):31-41,
https://doi.org/10.37358/RC.20.6.8167 . .

TY  - JOUR
AU  - Lović, Jelena
AU  - Avramov-Ivić, Milka
AU  - Božić, Bojan
AU  - Lađarević, Jelena
AU  - Mijin, Dušan
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4182
AB  - The inclusion complexes of the selected, potentially biologically active, succinimides with beta-cyclodextrin (beta CD) and (2-hydroxypropyl)-beta-cyclodextrin (HP beta CD) were prepared. The formation of the inclusion complexes of the investigated monophenyl and diphenyl succinimide derivatives was confirmed using attenuated total reflection (ATR) study. Their electrochemical behavior was examined by cyclic voltammetry (CV) and square wave voltammetry (SWV) in 0.05 M NaHCO3 on a gold electrode. The stability constants for compound 1 were determined by cyclic voltammetry and calculated as K-beta CD = 350.87 M-1 and K-HP(beta CD) = 250.67 M-1. The SWV measurements reveal well defined peak at potential E-p = similar to 60 mV and the higher currents at E-p for both inclusion complex of the succinimides compared to the free compounds. The impact of chlorine atom in the phenyl moiety of succinimide derivatives on the activity in electro oxidation reaction is presented. Among the studied succinimides, according to SWV measurements, the most active is the monophenyl succinimide derivative (compound 1) in complex with beta CD. The difference of peak current of compound 1 + beta CD compared to compound 1 + HP beta CD and free compound is 6.3 and 35.2 mu A cm(-2), respectively.
PB  - Slovensko Kemijsko Drustvo, Ljubljana
T2  - Acta Chimica Slovenica
T1  - Voltammetric Investigation of Inclusion Complexes of the Selected Succinimides with beta-Cyclodextrin and (2-Hydroxypropyl)-beta-Cyclodextrin
EP  - 189
IS  - 1
SP  - 182
VL  - 66
DO  - 10.17344/acsi.2018.4767
ER  - 

@article{
author = "Lović, Jelena and Avramov-Ivić, Milka and Božić, Bojan and Lađarević, Jelena and Mijin, Dušan",
year = "2019",
abstract = "The inclusion complexes of the selected, potentially biologically active, succinimides with beta-cyclodextrin (beta CD) and (2-hydroxypropyl)-beta-cyclodextrin (HP beta CD) were prepared. The formation of the inclusion complexes of the investigated monophenyl and diphenyl succinimide derivatives was confirmed using attenuated total reflection (ATR) study. Their electrochemical behavior was examined by cyclic voltammetry (CV) and square wave voltammetry (SWV) in 0.05 M NaHCO3 on a gold electrode. The stability constants for compound 1 were determined by cyclic voltammetry and calculated as K-beta CD = 350.87 M-1 and K-HP(beta CD) = 250.67 M-1. The SWV measurements reveal well defined peak at potential E-p = similar to 60 mV and the higher currents at E-p for both inclusion complex of the succinimides compared to the free compounds. The impact of chlorine atom in the phenyl moiety of succinimide derivatives on the activity in electro oxidation reaction is presented. Among the studied succinimides, according to SWV measurements, the most active is the monophenyl succinimide derivative (compound 1) in complex with beta CD. The difference of peak current of compound 1 + beta CD compared to compound 1 + HP beta CD and free compound is 6.3 and 35.2 mu A cm(-2), respectively.",
publisher = "Slovensko Kemijsko Drustvo, Ljubljana",
journal = "Acta Chimica Slovenica",
title = "Voltammetric Investigation of Inclusion Complexes of the Selected Succinimides with beta-Cyclodextrin and (2-Hydroxypropyl)-beta-Cyclodextrin",
pages = "189-182",
number = "1",
volume = "66",
doi = "10.17344/acsi.2018.4767"
}

Lović, J., Avramov-Ivić, M., Božić, B., Lađarević, J.,& Mijin, D.. (2019). Voltammetric Investigation of Inclusion Complexes of the Selected Succinimides with beta-Cyclodextrin and (2-Hydroxypropyl)-beta-Cyclodextrin. in Acta Chimica Slovenica
Slovensko Kemijsko Drustvo, Ljubljana., 66(1), 182-189.
https://doi.org/10.17344/acsi.2018.4767

Lović J, Avramov-Ivić M, Božić B, Lađarević J, Mijin D. Voltammetric Investigation of Inclusion Complexes of the Selected Succinimides with beta-Cyclodextrin and (2-Hydroxypropyl)-beta-Cyclodextrin. in Acta Chimica Slovenica. 2019;66(1):182-189.
doi:10.17344/acsi.2018.4767 .

Lović, Jelena, Avramov-Ivić, Milka, Božić, Bojan, Lađarević, Jelena, Mijin, Dušan, "Voltammetric Investigation of Inclusion Complexes of the Selected Succinimides with beta-Cyclodextrin and (2-Hydroxypropyl)-beta-Cyclodextrin" in Acta Chimica Slovenica, 66, no. 1 (2019):182-189,
https://doi.org/10.17344/acsi.2018.4767 . .

TY  - JOUR
AU  - Lović, Jelena
AU  - Lađarević, Jelena
AU  - Mijin, Dušan
AU  - Jadranin, Milka
AU  - Petrović, Slobodan
AU  - Avramov-Ivić, Milka
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4102
AB  - In this study the electrochemical behavior of metformin (MET), oral antihyperglycaemic agent, was assayed at three different electrodes. The drug standard was investigated by cyclic voltammetry and square wave voltammetry via its electrooxidation at Au and glassy carbon electrode in 0.05 M NaHCO3. Under these conditions transformation of MET to corresponding N-carbonyl guanidine via oxime intermediate is suggested. The stability of MET was tested under directed stress conditions using IrOx electrode with sodium sulphate as an electrolyte and cyclic 4-amino-2-imino-1-methyl-1,2-dihydro-1,3,5-triazine appeared as the main end-product. The courses of the electrochemical processes at three electrodes were followed by UV spectroscopy and evaluated by total organic carbon analysis.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Electrochemical stability of metformin in NaHCO3 and Na2SO4 water solution at Au, GC and IrOx electrodes
EP  - 1327
IS  - 11
SP  - 1319
VL  - 84
DO  - 10.2298/JSC190731091L
ER  - 

@article{
author = "Lović, Jelena and Lađarević, Jelena and Mijin, Dušan and Jadranin, Milka and Petrović, Slobodan and Avramov-Ivić, Milka",
year = "2019",
abstract = "In this study the electrochemical behavior of metformin (MET), oral antihyperglycaemic agent, was assayed at three different electrodes. The drug standard was investigated by cyclic voltammetry and square wave voltammetry via its electrooxidation at Au and glassy carbon electrode in 0.05 M NaHCO3. Under these conditions transformation of MET to corresponding N-carbonyl guanidine via oxime intermediate is suggested. The stability of MET was tested under directed stress conditions using IrOx electrode with sodium sulphate as an electrolyte and cyclic 4-amino-2-imino-1-methyl-1,2-dihydro-1,3,5-triazine appeared as the main end-product. The courses of the electrochemical processes at three electrodes were followed by UV spectroscopy and evaluated by total organic carbon analysis.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Electrochemical stability of metformin in NaHCO3 and Na2SO4 water solution at Au, GC and IrOx electrodes",
pages = "1327-1319",
number = "11",
volume = "84",
doi = "10.2298/JSC190731091L"
}

Lović, J., Lađarević, J., Mijin, D., Jadranin, M., Petrović, S.,& Avramov-Ivić, M.. (2019). Electrochemical stability of metformin in NaHCO3 and Na2SO4 water solution at Au, GC and IrOx electrodes. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 84(11), 1319-1327.
https://doi.org/10.2298/JSC190731091L

Lović J, Lađarević J, Mijin D, Jadranin M, Petrović S, Avramov-Ivić M. Electrochemical stability of metformin in NaHCO3 and Na2SO4 water solution at Au, GC and IrOx electrodes. in Journal of the Serbian Chemical Society. 2019;84(11):1319-1327.
doi:10.2298/JSC190731091L .

Lović, Jelena, Lađarević, Jelena, Mijin, Dušan, Jadranin, Milka, Petrović, Slobodan, Avramov-Ivić, Milka, "Electrochemical stability of metformin in NaHCO3 and Na2SO4 water solution at Au, GC and IrOx electrodes" in Journal of the Serbian Chemical Society, 84, no. 11 (2019):1319-1327,
https://doi.org/10.2298/JSC190731091L . .

TY  - JOUR
AU  - Avramov-Ivić, Milka
AU  - Lović, Jelena
AU  - Stevanović, Sanja
AU  - Nikolić, Nebojša
AU  - Trišović, Nemanja
AU  - Lađarević, Jelena
AU  - Vuković, Dragan
AU  - Drmanić, Saša
AU  - Mladenović, Aleksandar R.
AU  - Jadranin, Milka
AU  - Petrović, Slobodan
AU  - Mijin, Dušan
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4306
AB  - Esomeprazole is the most effective of the proton-pump inhibitors for the acid-related diseases and at first was examined for the electroanalytical purposes. The drug standard and as a content of injection powder was investigated by cyclic voltammetry (CV) and quantitatively determined using square wave voltammetry (SWV) via its electrooxidation at Au electrode in 0.05 M NaHCO3. SWV showed a linear dependency of the anodic peak currents vs. esomeprazole standard concentrations in the range from 3.0 to 500 mu g mL(-1) with the values of limit of detection (LOD) and limit of quantification (LOQ): 1.4 and 4.6 mu g mL(-1), respectively. Using the constructed and validated calibration curve, the values of unknown esomeprazole concentrations in injection powder and in human serum spiked with standard were determined. Before the electrochemical oxidation, it was shown by atomic force microscopy (AFM) that the small esomeprazole islands formed inside holes were visible and their diameter was about 200 nm attributed to physico-chemical characteristics of esomeprazole. After the electrochemical oxidation, the morphology of esomeprazole standard on Au surface was completely changed and composed of spherical particles in a diameter between 200 and 600 nm. With esomeprazole suspended in human serum, the process of crystallization partly occurred in the form of spherical grains with the average size of these grains was about 4 gm. The analysis at the macro level done by the optical microscopy (OM) confirmed this opinion. The study of esomeprazole degradation showed that at Au electrode, after 3 h of cycling, a neglectable amount of the esomeprazole was changed. Using IrOx electrode under directed stress conditions, its almost complete degradation was realized after 3 h confirmed by high performance liquid chromatography (HPLC). Total organic carbon (TOC) analysis showed that 95% of esomeprazole was mineralized. The HPLC and Liquid chromatography-mass spectrometry (LC-MS) study revealed the formation of 4-hydroxy omeprazole sulphide, 4-hydroxy omeprazole sulphone, esomeprazole sulphone and methylated esomeprazole.
PB  - Elsevier Science Sa, Lausanne
T2  - Journal of Electroanalytical Chemistry
T1  - Electrochemical behavior of esomeprazole: Its determination at Au electrode as standard and in injection powder combined with the study of its degradation
VL  - 848
DO  - 10.1016/j.jelechem.2019.113303
ER  - 

@article{
author = "Avramov-Ivić, Milka and Lović, Jelena and Stevanović, Sanja and Nikolić, Nebojša and Trišović, Nemanja and Lađarević, Jelena and Vuković, Dragan and Drmanić, Saša and Mladenović, Aleksandar R. and Jadranin, Milka and Petrović, Slobodan and Mijin, Dušan",
year = "2019",
abstract = "Esomeprazole is the most effective of the proton-pump inhibitors for the acid-related diseases and at first was examined for the electroanalytical purposes. The drug standard and as a content of injection powder was investigated by cyclic voltammetry (CV) and quantitatively determined using square wave voltammetry (SWV) via its electrooxidation at Au electrode in 0.05 M NaHCO3. SWV showed a linear dependency of the anodic peak currents vs. esomeprazole standard concentrations in the range from 3.0 to 500 mu g mL(-1) with the values of limit of detection (LOD) and limit of quantification (LOQ): 1.4 and 4.6 mu g mL(-1), respectively. Using the constructed and validated calibration curve, the values of unknown esomeprazole concentrations in injection powder and in human serum spiked with standard were determined. Before the electrochemical oxidation, it was shown by atomic force microscopy (AFM) that the small esomeprazole islands formed inside holes were visible and their diameter was about 200 nm attributed to physico-chemical characteristics of esomeprazole. After the electrochemical oxidation, the morphology of esomeprazole standard on Au surface was completely changed and composed of spherical particles in a diameter between 200 and 600 nm. With esomeprazole suspended in human serum, the process of crystallization partly occurred in the form of spherical grains with the average size of these grains was about 4 gm. The analysis at the macro level done by the optical microscopy (OM) confirmed this opinion. The study of esomeprazole degradation showed that at Au electrode, after 3 h of cycling, a neglectable amount of the esomeprazole was changed. Using IrOx electrode under directed stress conditions, its almost complete degradation was realized after 3 h confirmed by high performance liquid chromatography (HPLC). Total organic carbon (TOC) analysis showed that 95% of esomeprazole was mineralized. The HPLC and Liquid chromatography-mass spectrometry (LC-MS) study revealed the formation of 4-hydroxy omeprazole sulphide, 4-hydroxy omeprazole sulphone, esomeprazole sulphone and methylated esomeprazole.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Journal of Electroanalytical Chemistry",
title = "Electrochemical behavior of esomeprazole: Its determination at Au electrode as standard and in injection powder combined with the study of its degradation",
volume = "848",
doi = "10.1016/j.jelechem.2019.113303"
}

Avramov-Ivić, M., Lović, J., Stevanović, S., Nikolić, N., Trišović, N., Lađarević, J., Vuković, D., Drmanić, S., Mladenović, A. R., Jadranin, M., Petrović, S.,& Mijin, D.. (2019). Electrochemical behavior of esomeprazole: Its determination at Au electrode as standard and in injection powder combined with the study of its degradation. in Journal of Electroanalytical Chemistry
Elsevier Science Sa, Lausanne., 848.
https://doi.org/10.1016/j.jelechem.2019.113303

Avramov-Ivić M, Lović J, Stevanović S, Nikolić N, Trišović N, Lađarević J, Vuković D, Drmanić S, Mladenović AR, Jadranin M, Petrović S, Mijin D. Electrochemical behavior of esomeprazole: Its determination at Au electrode as standard and in injection powder combined with the study of its degradation. in Journal of Electroanalytical Chemistry. 2019;848.
doi:10.1016/j.jelechem.2019.113303 .

Avramov-Ivić, Milka, Lović, Jelena, Stevanović, Sanja, Nikolić, Nebojša, Trišović, Nemanja, Lađarević, Jelena, Vuković, Dragan, Drmanić, Saša, Mladenović, Aleksandar R., Jadranin, Milka, Petrović, Slobodan, Mijin, Dušan, "Electrochemical behavior of esomeprazole: Its determination at Au electrode as standard and in injection powder combined with the study of its degradation" in Journal of Electroanalytical Chemistry, 848 (2019),
https://doi.org/10.1016/j.jelechem.2019.113303 . .

TY  - JOUR
AU  - Božić, Bojan
AU  - Lović, Jelena
AU  - Banjac, Nebojša
AU  - Vitnik, Željko
AU  - Vitnik, Vesna
AU  - Mijin, Dušan
AU  - Ušćumlić, Gordana
AU  - Avramov-Ivić, Milka
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3871
AB  - A series of succinimide derivatives were studied using the cyclic and square wave voltammetry. Density function theory was used in order to determinate which of the structural parameters influence the electrochemical activity. The quantum chemical calculations of the investigated succinimides were linked with the experimental electrochemical data and used to propose the oxidation mechanism. The most active among studied succinimides is 1,3-diphenylsuccinimide. The results obtained from the cyclic and square wave voltammetry and quantum chemical calculations indicate that the investigated compounds undergo oxidation by irreversible, diffusion controlled process including transfer of 1e(-) and 1 proton. The voltammetric and DFT results signify that the mechanism of electrochemical oxidation of all compounds involve the conversion of carbonyl-methyne-phenyl segment or methylene group in free radical. This conversion proceeds by the loss of one proton one electron process.
PB  - Electrochemical Science Group, Beograd
T2  - International Journal of Electrochemical Science
T1  - Voltammetric and Quantum Investigation of Selected Succinimides
EP  - 4297
IS  - 5
SP  - 4285
VL  - 13
DO  - 10.20964/2018.05.54
ER  - 

@article{
author = "Božić, Bojan and Lović, Jelena and Banjac, Nebojša and Vitnik, Željko and Vitnik, Vesna and Mijin, Dušan and Ušćumlić, Gordana and Avramov-Ivić, Milka",
year = "2018",
abstract = "A series of succinimide derivatives were studied using the cyclic and square wave voltammetry. Density function theory was used in order to determinate which of the structural parameters influence the electrochemical activity. The quantum chemical calculations of the investigated succinimides were linked with the experimental electrochemical data and used to propose the oxidation mechanism. The most active among studied succinimides is 1,3-diphenylsuccinimide. The results obtained from the cyclic and square wave voltammetry and quantum chemical calculations indicate that the investigated compounds undergo oxidation by irreversible, diffusion controlled process including transfer of 1e(-) and 1 proton. The voltammetric and DFT results signify that the mechanism of electrochemical oxidation of all compounds involve the conversion of carbonyl-methyne-phenyl segment or methylene group in free radical. This conversion proceeds by the loss of one proton one electron process.",
publisher = "Electrochemical Science Group, Beograd",
journal = "International Journal of Electrochemical Science",
title = "Voltammetric and Quantum Investigation of Selected Succinimides",
pages = "4297-4285",
number = "5",
volume = "13",
doi = "10.20964/2018.05.54"
}

Božić, B., Lović, J., Banjac, N., Vitnik, Ž., Vitnik, V., Mijin, D., Ušćumlić, G.,& Avramov-Ivić, M.. (2018). Voltammetric and Quantum Investigation of Selected Succinimides. in International Journal of Electrochemical Science
Electrochemical Science Group, Beograd., 13(5), 4285-4297.
https://doi.org/10.20964/2018.05.54

Božić B, Lović J, Banjac N, Vitnik Ž, Vitnik V, Mijin D, Ušćumlić G, Avramov-Ivić M. Voltammetric and Quantum Investigation of Selected Succinimides. in International Journal of Electrochemical Science. 2018;13(5):4285-4297.
doi:10.20964/2018.05.54 .

Božić, Bojan, Lović, Jelena, Banjac, Nebojša, Vitnik, Željko, Vitnik, Vesna, Mijin, Dušan, Ušćumlić, Gordana, Avramov-Ivić, Milka, "Voltammetric and Quantum Investigation of Selected Succinimides" in International Journal of Electrochemical Science, 13, no. 5 (2018):4285-4297,
https://doi.org/10.20964/2018.05.54 . .

TY  - JOUR
AU  - Lović, Jelena
AU  - Stevanović, Sanja
AU  - Anđelković, Boban D.
AU  - Petrović, Slobodan
AU  - Vuković, Dragan
AU  - Prlainović, Nevena
AU  - Mijin, Dušan
AU  - Nikolić, Nebojša
AU  - Avramov-Ivić, Milka
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3907
AB  - Glucose biosensor containing cysteine (Cys), glutaraldehyde (GA) and glucose oxidase (GOx) onto gold electrode is constructed and already electrochemically tested. Now, the electrochemical behavior of biosensor in human serum is further investigated and supported by morphological characterization of layers for the first time. The morphology and microstructure of layers was examined by Fourier transformed infra red spectroscopy (FTIR), atomic force (AFM) and optical microscopy (OM). The electrochemical indication that the Cys-GA-GOx film on Au surface is not compact and that there were some bare regions which remain catalytically active is supported by AFM and OM results. The construction and the nature of bonding of Au-Cys-GA-GOx biosensor layers is confirmed by the FTIR study.
PB  - Electrochemical Science Group, Beograd
T2  - International Journal of Electrochemical Science
T1  - Electrochemical glucose biosensor with the characterization of surface morphology and content of glucose oxidase-glutaraldehyde-cysteine layers on gold electrode
EP  - 12348
IS  - 12
SP  - 12340
VL  - 13
DO  - 10.20964/2018.12.59
ER  - 

@article{
author = "Lović, Jelena and Stevanović, Sanja and Anđelković, Boban D. and Petrović, Slobodan and Vuković, Dragan and Prlainović, Nevena and Mijin, Dušan and Nikolić, Nebojša and Avramov-Ivić, Milka",
year = "2018",
abstract = "Glucose biosensor containing cysteine (Cys), glutaraldehyde (GA) and glucose oxidase (GOx) onto gold electrode is constructed and already electrochemically tested. Now, the electrochemical behavior of biosensor in human serum is further investigated and supported by morphological characterization of layers for the first time. The morphology and microstructure of layers was examined by Fourier transformed infra red spectroscopy (FTIR), atomic force (AFM) and optical microscopy (OM). The electrochemical indication that the Cys-GA-GOx film on Au surface is not compact and that there were some bare regions which remain catalytically active is supported by AFM and OM results. The construction and the nature of bonding of Au-Cys-GA-GOx biosensor layers is confirmed by the FTIR study.",
publisher = "Electrochemical Science Group, Beograd",
journal = "International Journal of Electrochemical Science",
title = "Electrochemical glucose biosensor with the characterization of surface morphology and content of glucose oxidase-glutaraldehyde-cysteine layers on gold electrode",
pages = "12348-12340",
number = "12",
volume = "13",
doi = "10.20964/2018.12.59"
}

Lović, J., Stevanović, S., Anđelković, B. D., Petrović, S., Vuković, D., Prlainović, N., Mijin, D., Nikolić, N.,& Avramov-Ivić, M.. (2018). Electrochemical glucose biosensor with the characterization of surface morphology and content of glucose oxidase-glutaraldehyde-cysteine layers on gold electrode. in International Journal of Electrochemical Science
Electrochemical Science Group, Beograd., 13(12), 12340-12348.
https://doi.org/10.20964/2018.12.59

Lović J, Stevanović S, Anđelković BD, Petrović S, Vuković D, Prlainović N, Mijin D, Nikolić N, Avramov-Ivić M. Electrochemical glucose biosensor with the characterization of surface morphology and content of glucose oxidase-glutaraldehyde-cysteine layers on gold electrode. in International Journal of Electrochemical Science. 2018;13(12):12340-12348.
doi:10.20964/2018.12.59 .

Lović, Jelena, Stevanović, Sanja, Anđelković, Boban D., Petrović, Slobodan, Vuković, Dragan, Prlainović, Nevena, Mijin, Dušan, Nikolić, Nebojša, Avramov-Ivić, Milka, "Electrochemical glucose biosensor with the characterization of surface morphology and content of glucose oxidase-glutaraldehyde-cysteine layers on gold electrode" in International Journal of Electrochemical Science, 13, no. 12 (2018):12340-12348,
https://doi.org/10.20964/2018.12.59 . .

TY  - JOUR
AU  - Lović, Jelena
AU  - Trišović, Nemanja
AU  - Antanasijević, Jelena
AU  - Avramov-Ivić, Milka
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4009
AB  - Electrochemical behavior of sildenafil citrate (SC) at gold and cystein (Cys) modified gold electrode (AulCys) in 0.1 M H2SO4 was investigated by cyclic voltammetry (CV) and by square wave voltammetry (SWV). Effect of scan rate on the CVs of SC standard was performed in order to examine the mode of transport and irreversibility of process. SC as standard is determined by SWV in acid solution at Au electrode in a range: 10(-3), 10(-2) 0.1, 0.5, 1 mu M and on Au/Cys in a range: 10(-3), 10(-2) 0.05, 0.1 mu M. The presence of Cys causes two-time larger peak currents and shifting of the incipient potential of the SC oxidation to 0.1 V in negative direction. In investigated range of concentration of SC standard in acid solution on modified and unmodified Au electrodes SWV method have excellent linear regression coefficient with value 0.997 promoting SWV for reliable determination of SC.
PB  - Int Assoc Physical Chemists-Iapc, Zagreb
T2  - Journal of Electrochemical Science and Engineering
T1  - Electrochemical behaviour of sildenafil citrate at gold and cystein modified gold electrode in acid solution
EP  - 170
IS  - 2
SP  - 163
VL  - 8
DO  - 10.5599/jese.481
ER  - 

@article{
author = "Lović, Jelena and Trišović, Nemanja and Antanasijević, Jelena and Avramov-Ivić, Milka",
year = "2018",
abstract = "Electrochemical behavior of sildenafil citrate (SC) at gold and cystein (Cys) modified gold electrode (AulCys) in 0.1 M H2SO4 was investigated by cyclic voltammetry (CV) and by square wave voltammetry (SWV). Effect of scan rate on the CVs of SC standard was performed in order to examine the mode of transport and irreversibility of process. SC as standard is determined by SWV in acid solution at Au electrode in a range: 10(-3), 10(-2) 0.1, 0.5, 1 mu M and on Au/Cys in a range: 10(-3), 10(-2) 0.05, 0.1 mu M. The presence of Cys causes two-time larger peak currents and shifting of the incipient potential of the SC oxidation to 0.1 V in negative direction. In investigated range of concentration of SC standard in acid solution on modified and unmodified Au electrodes SWV method have excellent linear regression coefficient with value 0.997 promoting SWV for reliable determination of SC.",
publisher = "Int Assoc Physical Chemists-Iapc, Zagreb",
journal = "Journal of Electrochemical Science and Engineering",
title = "Electrochemical behaviour of sildenafil citrate at gold and cystein modified gold electrode in acid solution",
pages = "170-163",
number = "2",
volume = "8",
doi = "10.5599/jese.481"
}

Lović, J., Trišović, N., Antanasijević, J.,& Avramov-Ivić, M.. (2018). Electrochemical behaviour of sildenafil citrate at gold and cystein modified gold electrode in acid solution. in Journal of Electrochemical Science and Engineering
Int Assoc Physical Chemists-Iapc, Zagreb., 8(2), 163-170.
https://doi.org/10.5599/jese.481

Lović J, Trišović N, Antanasijević J, Avramov-Ivić M. Electrochemical behaviour of sildenafil citrate at gold and cystein modified gold electrode in acid solution. in Journal of Electrochemical Science and Engineering. 2018;8(2):163-170.
doi:10.5599/jese.481 .

Lović, Jelena, Trišović, Nemanja, Antanasijević, Jelena, Avramov-Ivić, Milka, "Electrochemical behaviour of sildenafil citrate at gold and cystein modified gold electrode in acid solution" in Journal of Electrochemical Science and Engineering, 8, no. 2 (2018):163-170,
https://doi.org/10.5599/jese.481 . .

TY  - JOUR
AU  - Nikolić, Nebojša D.
AU  - Živković, Predrag M.
AU  - Lović, Jelena
AU  - Branković, Goran
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5815
AB  - In this study, mechanism of electrodeposition of zinc from the alkaline electrolytes has been investigated using the general theory of disperse deposits formation. The exchange current densities in the range 18.4-88 mA cm(-2) were determined using new method based on comparison of experimental and simulated polarization curves, and the excellent agreement with the values found in the literature has been attained. Correlation between the polarization characteristics and morphologies of zinc deposits characterized by the scanning electron microscopic (SEM) technique was established. The spongy-like particles constructed from nanofilaments and the large grains or boulders were formed in the zone of the fast increase of the current density with the overpotential before the plateau of the limiting diffusion current density was reached. The shape of dendrites, formed inside the plateau of the limiting diffusion current density and at the higher ones, strongly depended on overpotential of the electrodeposition. Mechanism of formation of all obtained forms was discussed by the consideration of the different rates of growth of surface protrusions in a function of the overpotential of electrodeposition through the analysis of the change of the ratio between the height and the radius of the protrusions. In order to confirm of the proposed mechanism, comparison with polarization and morphological characteristics of the other metals characterized by the different exchange current density values was made and discussed. Although zinc is classified in the group of the normal metals characterized by the high values of the exchange current density, it was found that the polarization and morphological characteristics of zinc show certain and strong similarities with those of copper, classifying zinc just at boundary between the normal and intermediate metals, that is confirmed by the estimation of the exchange current density value for zinc.
PB  - Elsevier
T2  - Journal of Electroanalytical Chemistry
T1  - Application of the general theory of disperse deposits formation in an investigation of mechanism of zinc electrodeposition from the alkaline electrolytes
EP  - 74
SP  - 65
VL  - 785
DO  - 10.1016/j.jelechem.2016.12.024
ER  - 

@article{
author = "Nikolić, Nebojša D. and Živković, Predrag M. and Lović, Jelena and Branković, Goran",
year = "2017",
abstract = "In this study, mechanism of electrodeposition of zinc from the alkaline electrolytes has been investigated using the general theory of disperse deposits formation. The exchange current densities in the range 18.4-88 mA cm(-2) were determined using new method based on comparison of experimental and simulated polarization curves, and the excellent agreement with the values found in the literature has been attained. Correlation between the polarization characteristics and morphologies of zinc deposits characterized by the scanning electron microscopic (SEM) technique was established. The spongy-like particles constructed from nanofilaments and the large grains or boulders were formed in the zone of the fast increase of the current density with the overpotential before the plateau of the limiting diffusion current density was reached. The shape of dendrites, formed inside the plateau of the limiting diffusion current density and at the higher ones, strongly depended on overpotential of the electrodeposition. Mechanism of formation of all obtained forms was discussed by the consideration of the different rates of growth of surface protrusions in a function of the overpotential of electrodeposition through the analysis of the change of the ratio between the height and the radius of the protrusions. In order to confirm of the proposed mechanism, comparison with polarization and morphological characteristics of the other metals characterized by the different exchange current density values was made and discussed. Although zinc is classified in the group of the normal metals characterized by the high values of the exchange current density, it was found that the polarization and morphological characteristics of zinc show certain and strong similarities with those of copper, classifying zinc just at boundary between the normal and intermediate metals, that is confirmed by the estimation of the exchange current density value for zinc.",
publisher = "Elsevier",
journal = "Journal of Electroanalytical Chemistry",
title = "Application of the general theory of disperse deposits formation in an investigation of mechanism of zinc electrodeposition from the alkaline electrolytes",
pages = "74-65",
volume = "785",
doi = "10.1016/j.jelechem.2016.12.024"
}

Nikolić, N. D., Živković, P. M., Lović, J.,& Branković, G.. (2017). Application of the general theory of disperse deposits formation in an investigation of mechanism of zinc electrodeposition from the alkaline electrolytes. in Journal of Electroanalytical Chemistry
Elsevier., 785, 65-74.
https://doi.org/10.1016/j.jelechem.2016.12.024

Nikolić ND, Živković PM, Lović J, Branković G. Application of the general theory of disperse deposits formation in an investigation of mechanism of zinc electrodeposition from the alkaline electrolytes. in Journal of Electroanalytical Chemistry. 2017;785:65-74.
doi:10.1016/j.jelechem.2016.12.024 .

Nikolić, Nebojša D., Živković, Predrag M., Lović, Jelena, Branković, Goran, "Application of the general theory of disperse deposits formation in an investigation of mechanism of zinc electrodeposition from the alkaline electrolytes" in Journal of Electroanalytical Chemistry, 785 (2017):65-74,
https://doi.org/10.1016/j.jelechem.2016.12.024 . .

TY  - JOUR
AU  - Lović, Jelena
AU  - Stevanović, Sanja
AU  - Nikolić, Nebojša
AU  - Petrović, Slobodan
AU  - Vuković, Dragan
AU  - Prlainović, Nevena
AU  - Mijin, Dušan
AU  - Avramov-Ivić, Milka
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3570
AB  - The method to develop a stable glucose biosensor with successive attachment of cysteine (Cys), glutaraldehyde (GA) and glucose oxidase (GOx) onto gold electrode is presented. The cyclic voltammetry (CV) suggests the diffusion control of the glucose oxidation. The obtained biosensor shows a fast electron transfer of k(0) = 20.4 s(-1), high affinity for glucose with the apparent MichaelisMenten constant K-M(app) = 1.15 mM, a low detection limit of 0.94 mM in a linear range 1.5-7 mM. This biosensor exhibits good stability and reproducibility. Good biocompatibility of modified electrode surface, which enhances the covalent bonded enzyme and consequently glucose oxidation, resulted in biosensor with excellent performances. Biosensor was tested in samples containing human serum.
PB  - Electrochemical Science Group, Beograd
T2  - International Journal of Electrochemical Science
T1  - Glucose Sensing Using Glucose Oxidase-GlutaraldehydeCysteine Modified Gold Electrode
EP  - 5817
IS  - 7
SP  - 5806
VL  - 12
DO  - 10.20964/2017.07.65
ER  - 

@article{
author = "Lović, Jelena and Stevanović, Sanja and Nikolić, Nebojša and Petrović, Slobodan and Vuković, Dragan and Prlainović, Nevena and Mijin, Dušan and Avramov-Ivić, Milka",
year = "2017",
abstract = "The method to develop a stable glucose biosensor with successive attachment of cysteine (Cys), glutaraldehyde (GA) and glucose oxidase (GOx) onto gold electrode is presented. The cyclic voltammetry (CV) suggests the diffusion control of the glucose oxidation. The obtained biosensor shows a fast electron transfer of k(0) = 20.4 s(-1), high affinity for glucose with the apparent MichaelisMenten constant K-M(app) = 1.15 mM, a low detection limit of 0.94 mM in a linear range 1.5-7 mM. This biosensor exhibits good stability and reproducibility. Good biocompatibility of modified electrode surface, which enhances the covalent bonded enzyme and consequently glucose oxidation, resulted in biosensor with excellent performances. Biosensor was tested in samples containing human serum.",
publisher = "Electrochemical Science Group, Beograd",
journal = "International Journal of Electrochemical Science",
title = "Glucose Sensing Using Glucose Oxidase-GlutaraldehydeCysteine Modified Gold Electrode",
pages = "5817-5806",
number = "7",
volume = "12",
doi = "10.20964/2017.07.65"
}

Lović, J., Stevanović, S., Nikolić, N., Petrović, S., Vuković, D., Prlainović, N., Mijin, D.,& Avramov-Ivić, M.. (2017). Glucose Sensing Using Glucose Oxidase-GlutaraldehydeCysteine Modified Gold Electrode. in International Journal of Electrochemical Science
Electrochemical Science Group, Beograd., 12(7), 5806-5817.
https://doi.org/10.20964/2017.07.65

Lović J, Stevanović S, Nikolić N, Petrović S, Vuković D, Prlainović N, Mijin D, Avramov-Ivić M. Glucose Sensing Using Glucose Oxidase-GlutaraldehydeCysteine Modified Gold Electrode. in International Journal of Electrochemical Science. 2017;12(7):5806-5817.
doi:10.20964/2017.07.65 .

Lović, Jelena, Stevanović, Sanja, Nikolić, Nebojša, Petrović, Slobodan, Vuković, Dragan, Prlainović, Nevena, Mijin, Dušan, Avramov-Ivić, Milka, "Glucose Sensing Using Glucose Oxidase-GlutaraldehydeCysteine Modified Gold Electrode" in International Journal of Electrochemical Science, 12, no. 7 (2017):5806-5817,
https://doi.org/10.20964/2017.07.65 . .

TY  - JOUR
AU  - Radosavljević, Kristina D.
AU  - Lović, Jelena
AU  - Mijin, Dušan
AU  - Petrović, Slobodan
AU  - Jadranin, Milka
AU  - Mladenović, Aleksandar R.
AU  - Avramov-Ivić, Milka
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3685
AB  - The electrodegradation of azithromycin was studied by its indirect oxidation using dimensionally stable Ti/RuO2 anode as catalyst in the electrolyte containing methanol, 0.05 M NaHCO3, sodium chloride and deionized water. The optimal conditions for galvanostatic electrodegradation for the azithromycin concentration of 0.472 mg cm(-3) were found to be NaCl concentration of 7 mg cm(-3) and the applied current of 300 mA. The differential pulse voltammetry using glassy carbon electrode was performed for the first time in the above-mentioned content of electrolyte for the nine concentration of azithromycin (0.075-0.675 mg cm(-3)) giving the limits of azithromycin detection and of quantification as: LOD 0.044 mg cm(-3) and LOQ 0.145 mg cm(-3). The calibration curve was constructed enabling the electrolyte analysis during its electrodegradation process. The electrolyte was analyzed by high-performance liquid chromatography and electrospray ionization time-of-flight mass spectrometry. The electrooxidation products were identified and after 180 min there was no azithromycin in the electrolyte while TOC analysis showed that 79% of azithromycin was mineralized. The proposed degradation scheme is presented.
PB  - Springer International Publishing Ag, Cham
T2  - Chemical Papers
T1  - Degradation of azithromycin using Ti/RuO2 anode as catalyst followed by DPV, HPLC-UV and MS analysis
EP  - 1224
IS  - 7
SP  - 1217
VL  - 71
DO  - 10.1007/s11696-016-0115-2
ER  - 

@article{
author = "Radosavljević, Kristina D. and Lović, Jelena and Mijin, Dušan and Petrović, Slobodan and Jadranin, Milka and Mladenović, Aleksandar R. and Avramov-Ivić, Milka",
year = "2017",
abstract = "The electrodegradation of azithromycin was studied by its indirect oxidation using dimensionally stable Ti/RuO2 anode as catalyst in the electrolyte containing methanol, 0.05 M NaHCO3, sodium chloride and deionized water. The optimal conditions for galvanostatic electrodegradation for the azithromycin concentration of 0.472 mg cm(-3) were found to be NaCl concentration of 7 mg cm(-3) and the applied current of 300 mA. The differential pulse voltammetry using glassy carbon electrode was performed for the first time in the above-mentioned content of electrolyte for the nine concentration of azithromycin (0.075-0.675 mg cm(-3)) giving the limits of azithromycin detection and of quantification as: LOD 0.044 mg cm(-3) and LOQ 0.145 mg cm(-3). The calibration curve was constructed enabling the electrolyte analysis during its electrodegradation process. The electrolyte was analyzed by high-performance liquid chromatography and electrospray ionization time-of-flight mass spectrometry. The electrooxidation products were identified and after 180 min there was no azithromycin in the electrolyte while TOC analysis showed that 79% of azithromycin was mineralized. The proposed degradation scheme is presented.",
publisher = "Springer International Publishing Ag, Cham",
journal = "Chemical Papers",
title = "Degradation of azithromycin using Ti/RuO2 anode as catalyst followed by DPV, HPLC-UV and MS analysis",
pages = "1224-1217",
number = "7",
volume = "71",
doi = "10.1007/s11696-016-0115-2"
}

Radosavljević, K. D., Lović, J., Mijin, D., Petrović, S., Jadranin, M., Mladenović, A. R.,& Avramov-Ivić, M.. (2017). Degradation of azithromycin using Ti/RuO2 anode as catalyst followed by DPV, HPLC-UV and MS analysis. in Chemical Papers
Springer International Publishing Ag, Cham., 71(7), 1217-1224.
https://doi.org/10.1007/s11696-016-0115-2

Radosavljević KD, Lović J, Mijin D, Petrović S, Jadranin M, Mladenović AR, Avramov-Ivić M. Degradation of azithromycin using Ti/RuO2 anode as catalyst followed by DPV, HPLC-UV and MS analysis. in Chemical Papers. 2017;71(7):1217-1224.
doi:10.1007/s11696-016-0115-2 .

Radosavljević, Kristina D., Lović, Jelena, Mijin, Dušan, Petrović, Slobodan, Jadranin, Milka, Mladenović, Aleksandar R., Avramov-Ivić, Milka, "Degradation of azithromycin using Ti/RuO2 anode as catalyst followed by DPV, HPLC-UV and MS analysis" in Chemical Papers, 71, no. 7 (2017):1217-1224,
https://doi.org/10.1007/s11696-016-0115-2 . .

TY  - JOUR
AU  - Avramov-Ivić, Milka
AU  - Antanasijević, Jelena
AU  - Trišović, Nemanja
AU  - Antanasijević, Davor
AU  - Lović, Jelena
AU  - Mijin, Dušan
AU  - Petrović, Slobodan
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3358
AB  - The electrochemical behavior of phenobarbital sodium (PBS), paracetamol (PCM) and their binary mixtures was investigated using cyclic voltammetry (CV) and square wave voltammetry (SWV) at a bare gold electrode in a 0.05 M bicarbonate solution. A calibration curve of PBS obtained by SWV had two linear ranges, from 1.0 to 3.0 mu M and from 5.0 to 35.0 mu M with a limit of quantification (LOQ) of 0.62 mu M and a limit of detection (LOD) of 0.19 mu M, while a calibration curve of PCM was determined within the range from 10.0 to 50.0 mu M with a LOQ of 8.53 mu M and a LOD of 2.56 mu M. Both drugs underwent oxidation by irreversible, diffusion controlled process. The SW voltammograms of the drug mixtures produced complex, overlapping profiles and a chemometric method was applied for their decomposition. Two different artificial neural network (ANN) architectures, namely back-propagation neural network (BPNN) and general regression neural network (GRNN) were employed for the simultaneous prediction of the concentrations of the drugs in a synthetic sample. The BPNN model had higher accuracy (mean absolute percentage error values were in the range of 3.6-8.4%) and thus it can be used for the simultaneous determination of PBS and PCM.
PB  - Electrochemical Science Group, Beograd
T2  - International Journal of Electrochemical Science
T1  - A Chemometrical Analysis of Voltammetric Data for Simultaneous Determination of Phenobarbital Sodium and Paracetamol Obtained at a Gold Electrode
EP  - 5951
IS  - 7
SP  - 5935
VL  - 11
DO  - 10.20964/2016.07.48
ER  - 

@article{
author = "Avramov-Ivić, Milka and Antanasijević, Jelena and Trišović, Nemanja and Antanasijević, Davor and Lović, Jelena and Mijin, Dušan and Petrović, Slobodan",
year = "2016",
abstract = "The electrochemical behavior of phenobarbital sodium (PBS), paracetamol (PCM) and their binary mixtures was investigated using cyclic voltammetry (CV) and square wave voltammetry (SWV) at a bare gold electrode in a 0.05 M bicarbonate solution. A calibration curve of PBS obtained by SWV had two linear ranges, from 1.0 to 3.0 mu M and from 5.0 to 35.0 mu M with a limit of quantification (LOQ) of 0.62 mu M and a limit of detection (LOD) of 0.19 mu M, while a calibration curve of PCM was determined within the range from 10.0 to 50.0 mu M with a LOQ of 8.53 mu M and a LOD of 2.56 mu M. Both drugs underwent oxidation by irreversible, diffusion controlled process. The SW voltammograms of the drug mixtures produced complex, overlapping profiles and a chemometric method was applied for their decomposition. Two different artificial neural network (ANN) architectures, namely back-propagation neural network (BPNN) and general regression neural network (GRNN) were employed for the simultaneous prediction of the concentrations of the drugs in a synthetic sample. The BPNN model had higher accuracy (mean absolute percentage error values were in the range of 3.6-8.4%) and thus it can be used for the simultaneous determination of PBS and PCM.",
publisher = "Electrochemical Science Group, Beograd",
journal = "International Journal of Electrochemical Science",
title = "A Chemometrical Analysis of Voltammetric Data for Simultaneous Determination of Phenobarbital Sodium and Paracetamol Obtained at a Gold Electrode",
pages = "5951-5935",
number = "7",
volume = "11",
doi = "10.20964/2016.07.48"
}

Avramov-Ivić, M., Antanasijević, J., Trišović, N., Antanasijević, D., Lović, J., Mijin, D.,& Petrović, S.. (2016). A Chemometrical Analysis of Voltammetric Data for Simultaneous Determination of Phenobarbital Sodium and Paracetamol Obtained at a Gold Electrode. in International Journal of Electrochemical Science
Electrochemical Science Group, Beograd., 11(7), 5935-5951.
https://doi.org/10.20964/2016.07.48

Avramov-Ivić M, Antanasijević J, Trišović N, Antanasijević D, Lović J, Mijin D, Petrović S. A Chemometrical Analysis of Voltammetric Data for Simultaneous Determination of Phenobarbital Sodium and Paracetamol Obtained at a Gold Electrode. in International Journal of Electrochemical Science. 2016;11(7):5935-5951.
doi:10.20964/2016.07.48 .

Avramov-Ivić, Milka, Antanasijević, Jelena, Trišović, Nemanja, Antanasijević, Davor, Lović, Jelena, Mijin, Dušan, Petrović, Slobodan, "A Chemometrical Analysis of Voltammetric Data for Simultaneous Determination of Phenobarbital Sodium and Paracetamol Obtained at a Gold Electrode" in International Journal of Electrochemical Science, 11, no. 7 (2016):5935-5951,
https://doi.org/10.20964/2016.07.48 . .

TY  - JOUR
AU  - Lović, Jelena
AU  - Mijin, Dušan
AU  - Jovanović, Mica B.
AU  - Glavaski, Olivera
AU  - Zeremski, Tijana
AU  - Petrović, Slobodan
AU  - Avramov-Ivić, Milka
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3350
AB  - Tebuconazole, a pesticide that presents risks for ecosystems, groundwater and human health, was degraded on a gold electrode as the catalyst in 0.05 M NaHCO3 using cyclic voltammetry (CV). First, tebuconazole was characterized on the gold electrode using CV and square wave voltammetry (SWV). The gold electrode, being highly sensitive, provided linear relationships (currents vs. concentrations) in the range: (0.076-0.76 mu mol dm(-3)). Based on the CV measurements, the investigated process is irreversible and diffusion controlled. The observed catalytic role of the Au electrode in the oxidation of tebuconazole and the data obtained from CV and SWV provided the experimental conditions for the degradation of tebuconazole. The degradation was performed by continuous cycling followed by gas chromatography mass spectroscopy (GC MS) analysis. This enabled the catalytic elimination of tebuconazole for 60 min, which promoted the use of a gold electrode as the catalyst for the degradation of environmental pollutants. The scheme of the possible mechanism of tebuconazole degradation is given.
PB  - Elsevier France-Editions Scientifiques Medicales Elsevier, Paris
T2  - Comptes Rendus Chimie
T1  - An investigation of tebuconazole degradation using a gold electrode
EP  - 645
IS  - 5
SP  - 639
VL  - 19
DO  - 10.1016/j.crci.2016.01.014
ER  - 

@article{
author = "Lović, Jelena and Mijin, Dušan and Jovanović, Mica B. and Glavaski, Olivera and Zeremski, Tijana and Petrović, Slobodan and Avramov-Ivić, Milka",
year = "2016",
abstract = "Tebuconazole, a pesticide that presents risks for ecosystems, groundwater and human health, was degraded on a gold electrode as the catalyst in 0.05 M NaHCO3 using cyclic voltammetry (CV). First, tebuconazole was characterized on the gold electrode using CV and square wave voltammetry (SWV). The gold electrode, being highly sensitive, provided linear relationships (currents vs. concentrations) in the range: (0.076-0.76 mu mol dm(-3)). Based on the CV measurements, the investigated process is irreversible and diffusion controlled. The observed catalytic role of the Au electrode in the oxidation of tebuconazole and the data obtained from CV and SWV provided the experimental conditions for the degradation of tebuconazole. The degradation was performed by continuous cycling followed by gas chromatography mass spectroscopy (GC MS) analysis. This enabled the catalytic elimination of tebuconazole for 60 min, which promoted the use of a gold electrode as the catalyst for the degradation of environmental pollutants. The scheme of the possible mechanism of tebuconazole degradation is given.",
publisher = "Elsevier France-Editions Scientifiques Medicales Elsevier, Paris",
journal = "Comptes Rendus Chimie",
title = "An investigation of tebuconazole degradation using a gold electrode",
pages = "645-639",
number = "5",
volume = "19",
doi = "10.1016/j.crci.2016.01.014"
}

Lović, J., Mijin, D., Jovanović, M. B., Glavaski, O., Zeremski, T., Petrović, S.,& Avramov-Ivić, M.. (2016). An investigation of tebuconazole degradation using a gold electrode. in Comptes Rendus Chimie
Elsevier France-Editions Scientifiques Medicales Elsevier, Paris., 19(5), 639-645.
https://doi.org/10.1016/j.crci.2016.01.014

Lović J, Mijin D, Jovanović MB, Glavaski O, Zeremski T, Petrović S, Avramov-Ivić M. An investigation of tebuconazole degradation using a gold electrode. in Comptes Rendus Chimie. 2016;19(5):639-645.
doi:10.1016/j.crci.2016.01.014 .

Lović, Jelena, Mijin, Dušan, Jovanović, Mica B., Glavaski, Olivera, Zeremski, Tijana, Petrović, Slobodan, Avramov-Ivić, Milka, "An investigation of tebuconazole degradation using a gold electrode" in Comptes Rendus Chimie, 19, no. 5 (2016):639-645,
https://doi.org/10.1016/j.crci.2016.01.014 . .

TY  - JOUR
AU  - Lović, Jelena
AU  - Trišović, Nemanja
AU  - Antanasijević, Jelena
AU  - Nikolić, Nebojša
AU  - Stevanović, Sanja
AU  - Mijin, Dušan
AU  - Vuković, Dragan
AU  - Mladenović, Aleksandar R.
AU  - Petrović, Slobodan
AU  - Avramov-Ivić, Milka
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3312
AB  - Nonmedical use of sildenafil citrate (SC) requires new methods for drug determination in human serum and in tablets. SC as standard and in Sildena (R) tablets is determined by square wave voltammetry (SWV) in 0.1 M H2SO4 (harmful for human serum) at gold electrode in a range: (1 x 10(-3),1 x 10(-2), 0.1, 0.5,1) mu M and on cysteine (Cys) modified gold electrode (Au/Cys) in a range: (1 x 10(-3),1 x 10(-2), 0.05, 0.1) mu M. The presence of Cys causes two times larger peak currents and shifting of the incipient potential of the SC oxidation to 0.1 V in negative direction. A safe procedure for SC determination as standard and in Sildena (R) tablets spiked with human serum is developed by SWV at gold electrode in 0.05 M NaHCO3 (suitable for human liquids) in a range: (1 x 10(-3),1 x 10(-2), 0.1, 0.2, 03) mu M. Microscopic characterization of the surfaces morphology was also performed. The SC concentrations were checked by high performance liquid chromatography-ultraviolet spectroscopy (HPLC-UV) showing that electrochemical method is more sensitive and can be used for the measurements of very low concentrations of the analyte.
PB  - Elsevier Science Sa, Lausanne
T2  - Journal of Electroanalytical Chemistry
T1  - Electrochemical determination of sildenafil citrate as standard, in tablets and spiked with human serum at gold and cystein modified gold electrode
EP  - 107
SP  - 103
VL  - 782
DO  - 10.1016/j.jelechem.2016.10.022
ER  - 

@article{
author = "Lović, Jelena and Trišović, Nemanja and Antanasijević, Jelena and Nikolić, Nebojša and Stevanović, Sanja and Mijin, Dušan and Vuković, Dragan and Mladenović, Aleksandar R. and Petrović, Slobodan and Avramov-Ivić, Milka",
year = "2016",
abstract = "Nonmedical use of sildenafil citrate (SC) requires new methods for drug determination in human serum and in tablets. SC as standard and in Sildena (R) tablets is determined by square wave voltammetry (SWV) in 0.1 M H2SO4 (harmful for human serum) at gold electrode in a range: (1 x 10(-3),1 x 10(-2), 0.1, 0.5,1) mu M and on cysteine (Cys) modified gold electrode (Au/Cys) in a range: (1 x 10(-3),1 x 10(-2), 0.05, 0.1) mu M. The presence of Cys causes two times larger peak currents and shifting of the incipient potential of the SC oxidation to 0.1 V in negative direction. A safe procedure for SC determination as standard and in Sildena (R) tablets spiked with human serum is developed by SWV at gold electrode in 0.05 M NaHCO3 (suitable for human liquids) in a range: (1 x 10(-3),1 x 10(-2), 0.1, 0.2, 03) mu M. Microscopic characterization of the surfaces morphology was also performed. The SC concentrations were checked by high performance liquid chromatography-ultraviolet spectroscopy (HPLC-UV) showing that electrochemical method is more sensitive and can be used for the measurements of very low concentrations of the analyte.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Journal of Electroanalytical Chemistry",
title = "Electrochemical determination of sildenafil citrate as standard, in tablets and spiked with human serum at gold and cystein modified gold electrode",
pages = "107-103",
volume = "782",
doi = "10.1016/j.jelechem.2016.10.022"
}

Lović, J., Trišović, N., Antanasijević, J., Nikolić, N., Stevanović, S., Mijin, D., Vuković, D., Mladenović, A. R., Petrović, S.,& Avramov-Ivić, M.. (2016). Electrochemical determination of sildenafil citrate as standard, in tablets and spiked with human serum at gold and cystein modified gold electrode. in Journal of Electroanalytical Chemistry
Elsevier Science Sa, Lausanne., 782, 103-107.
https://doi.org/10.1016/j.jelechem.2016.10.022

Lović J, Trišović N, Antanasijević J, Nikolić N, Stevanović S, Mijin D, Vuković D, Mladenović AR, Petrović S, Avramov-Ivić M. Electrochemical determination of sildenafil citrate as standard, in tablets and spiked with human serum at gold and cystein modified gold electrode. in Journal of Electroanalytical Chemistry. 2016;782:103-107.
doi:10.1016/j.jelechem.2016.10.022 .

Lović, Jelena, Trišović, Nemanja, Antanasijević, Jelena, Nikolić, Nebojša, Stevanović, Sanja, Mijin, Dušan, Vuković, Dragan, Mladenović, Aleksandar R., Petrović, Slobodan, Avramov-Ivić, Milka, "Electrochemical determination of sildenafil citrate as standard, in tablets and spiked with human serum at gold and cystein modified gold electrode" in Journal of Electroanalytical Chemistry, 782 (2016):103-107,
https://doi.org/10.1016/j.jelechem.2016.10.022 . .

TY  - JOUR
AU  - Tolić, Ljiljana
AU  - Lović, Jelena
AU  - Petrović, Slobodan
AU  - Mijin, Dušan
AU  - Grujić, Svetlana
AU  - Laušević, Mila
AU  - Avramov-Ivić, Milka
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3148
AB  - Anisomycin is an immunosuppressant in low doses ( lt 0.1 mu M) with possible application in treatment of some autoimmune diseases and in inhibiting transplantation rejection. Anisomycin suppresses malignant tumor cell growth and affects memory. For the first time it was the subject of the electrochemical investigations by cyclic voltammetry and square wave voltammetry on gold electrode in 0.05 M NaHCO3 using its electrochemical activity. The cyclic voltammetry experiments at different sweep rates show that electrochemical process is irreversible and diffusion controlled. Based on square wave voltammetry measurements, the calculated values of LOD and LOQ were 1 and 4 nM (in the absence of biological fluid), as well as 2 and 6 nM (in the presence of spiked urine) indicating the high sensitivity of the proposed electroanalytical method. High performance liquid chromatography-tandem mass spectrometry was a reference method for quantification of anisomycin and served for structural identification of its hydrolysis product (deacetylanisomycin).
PB  - Elsevier Science Inc, New York
T2  - Electrochemistry Communications
T1  - Investigation of electrochemical behavior of anisomycin on gold electrode followed by HPLC-MS/MS analysis
EP  - 24
SP  - 20
VL  - 58
DO  - 10.1016/j.elecom.2015.05.017
ER  - 

@article{
author = "Tolić, Ljiljana and Lović, Jelena and Petrović, Slobodan and Mijin, Dušan and Grujić, Svetlana and Laušević, Mila and Avramov-Ivić, Milka",
year = "2015",
abstract = "Anisomycin is an immunosuppressant in low doses ( lt 0.1 mu M) with possible application in treatment of some autoimmune diseases and in inhibiting transplantation rejection. Anisomycin suppresses malignant tumor cell growth and affects memory. For the first time it was the subject of the electrochemical investigations by cyclic voltammetry and square wave voltammetry on gold electrode in 0.05 M NaHCO3 using its electrochemical activity. The cyclic voltammetry experiments at different sweep rates show that electrochemical process is irreversible and diffusion controlled. Based on square wave voltammetry measurements, the calculated values of LOD and LOQ were 1 and 4 nM (in the absence of biological fluid), as well as 2 and 6 nM (in the presence of spiked urine) indicating the high sensitivity of the proposed electroanalytical method. High performance liquid chromatography-tandem mass spectrometry was a reference method for quantification of anisomycin and served for structural identification of its hydrolysis product (deacetylanisomycin).",
publisher = "Elsevier Science Inc, New York",
journal = "Electrochemistry Communications",
title = "Investigation of electrochemical behavior of anisomycin on gold electrode followed by HPLC-MS/MS analysis",
pages = "24-20",
volume = "58",
doi = "10.1016/j.elecom.2015.05.017"
}

Tolić, L., Lović, J., Petrović, S., Mijin, D., Grujić, S., Laušević, M.,& Avramov-Ivić, M.. (2015). Investigation of electrochemical behavior of anisomycin on gold electrode followed by HPLC-MS/MS analysis. in Electrochemistry Communications
Elsevier Science Inc, New York., 58, 20-24.
https://doi.org/10.1016/j.elecom.2015.05.017

Tolić L, Lović J, Petrović S, Mijin D, Grujić S, Laušević M, Avramov-Ivić M. Investigation of electrochemical behavior of anisomycin on gold electrode followed by HPLC-MS/MS analysis. in Electrochemistry Communications. 2015;58:20-24.
doi:10.1016/j.elecom.2015.05.017 .

Tolić, Ljiljana, Lović, Jelena, Petrović, Slobodan, Mijin, Dušan, Grujić, Svetlana, Laušević, Mila, Avramov-Ivić, Milka, "Investigation of electrochemical behavior of anisomycin on gold electrode followed by HPLC-MS/MS analysis" in Electrochemistry Communications, 58 (2015):20-24,
https://doi.org/10.1016/j.elecom.2015.05.017 . .

TY  - JOUR
AU  - Trišović, Nemanja
AU  - Božić, Bojan
AU  - Lović, Jelena
AU  - Vitnik, Vesna
AU  - Vitnik, Željko
AU  - Petrović, Slobodan
AU  - Avramov-Ivić, Milka
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2976
AB  - Phenytoin (5,5-diphenylhydantoin), one of the most frequently used anticonvulsant and antiarrhythmic drugs, was examined and determined at bare gold electrode in 0.05 M NaHCO3 using its anodic activity by cyclic voltammetry (CV) and square wave voltammetry (SWV). Gold electrode is highly sensitive to the phenytoin concentration (the investigated level of concentrations is usually found in human serum of patients treated with phenytoin), providing linear relationships for a set of lower concentrations (0.5, 0.6, 0.8, 1.0 mu mol dm(-3)) and for a set of higher concentrations (10, 20, 30, 40, 50 mu mol dm(-3)). The effects of the substituent on the phenyl rings on the electrochemical behavior of two derivatives, 5,5-di(4-chlorophenyl) hydantoin and 5,5-di(4-methylphenyl) hydantoin, were examined by CV. A computational study in correlation with the experimental voltammetric results enabled to propose the oxidation mechanisms: the investigated compounds undergo oxidation involving transfer of 1e(-) and 1 proton by irreversible, diffusion controlled process.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Electrochimica Acta
T1  - Electrochemical characterization of phenytoin and its derivatives on bare gold electrode
EP  - 387
SP  - 378
VL  - 161
DO  - 10.1016/j.electacta.2015.02.114
ER  - 

@article{
author = "Trišović, Nemanja and Božić, Bojan and Lović, Jelena and Vitnik, Vesna and Vitnik, Željko and Petrović, Slobodan and Avramov-Ivić, Milka",
year = "2015",
abstract = "Phenytoin (5,5-diphenylhydantoin), one of the most frequently used anticonvulsant and antiarrhythmic drugs, was examined and determined at bare gold electrode in 0.05 M NaHCO3 using its anodic activity by cyclic voltammetry (CV) and square wave voltammetry (SWV). Gold electrode is highly sensitive to the phenytoin concentration (the investigated level of concentrations is usually found in human serum of patients treated with phenytoin), providing linear relationships for a set of lower concentrations (0.5, 0.6, 0.8, 1.0 mu mol dm(-3)) and for a set of higher concentrations (10, 20, 30, 40, 50 mu mol dm(-3)). The effects of the substituent on the phenyl rings on the electrochemical behavior of two derivatives, 5,5-di(4-chlorophenyl) hydantoin and 5,5-di(4-methylphenyl) hydantoin, were examined by CV. A computational study in correlation with the experimental voltammetric results enabled to propose the oxidation mechanisms: the investigated compounds undergo oxidation involving transfer of 1e(-) and 1 proton by irreversible, diffusion controlled process.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Electrochimica Acta",
title = "Electrochemical characterization of phenytoin and its derivatives on bare gold electrode",
pages = "387-378",
volume = "161",
doi = "10.1016/j.electacta.2015.02.114"
}

Trišović, N., Božić, B., Lović, J., Vitnik, V., Vitnik, Ž., Petrović, S.,& Avramov-Ivić, M.. (2015). Electrochemical characterization of phenytoin and its derivatives on bare gold electrode. in Electrochimica Acta
Pergamon-Elsevier Science Ltd, Oxford., 161, 378-387.
https://doi.org/10.1016/j.electacta.2015.02.114

Trišović N, Božić B, Lović J, Vitnik V, Vitnik Ž, Petrović S, Avramov-Ivić M. Electrochemical characterization of phenytoin and its derivatives on bare gold electrode. in Electrochimica Acta. 2015;161:378-387.
doi:10.1016/j.electacta.2015.02.114 .

Trišović, Nemanja, Božić, Bojan, Lović, Jelena, Vitnik, Vesna, Vitnik, Željko, Petrović, Slobodan, Avramov-Ivić, Milka, "Electrochemical characterization of phenytoin and its derivatives on bare gold electrode" in Electrochimica Acta, 161 (2015):378-387,
https://doi.org/10.1016/j.electacta.2015.02.114 . .

TY  - JOUR
AU  - Mirković, Jelena
AU  - Lović, Jelena
AU  - Avramov-Ivić, Milka
AU  - Mijin, Dušan
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2658
AB  - The electrochemical behavior of six arylazo pyridone dyes classified to the substituents present at the phenylazo and 2-pyridone moiety and their 1:1 inclusion complexes with (2-hydroxypropyl)-beta-cyclodextrin was studied using cyclic and square wave voltammetry in 0.1 M NaOH on a gold electrode. The formation of the inclusion complexes of the dyes was confirmed using UV-Vis and FTIR spectroscopy measurements. Among the studied dyes, according to potentiodynamic measurements, the most active is the dye 1. The inclusion complexes of the dyes exhibited improved electrochemical activity in comparison to the pure dyes. The results obtained by square wave voltammetry show the apparent activity of the dyes with a methoxy group as a substituent at the phenylazo moiety and ethyl and hydroxyethyl groups in the 2-pyridone moiety, and their inclusion complexes. The electrooxidation mechanism of the investigated arylazo pyridone dyes was also proposed.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Electrochimica Acta
T1  - Electrooxidative Behavior of Arylazo Pyridone Dyes and Their Inclusion Complexes on Gold Electrode in 0.1 M NaOH
EP  - 713
SP  - 705
VL  - 137
DO  - 10.1016/j.electacta.2014.06.048
ER  - 

@article{
author = "Mirković, Jelena and Lović, Jelena and Avramov-Ivić, Milka and Mijin, Dušan",
year = "2014",
abstract = "The electrochemical behavior of six arylazo pyridone dyes classified to the substituents present at the phenylazo and 2-pyridone moiety and their 1:1 inclusion complexes with (2-hydroxypropyl)-beta-cyclodextrin was studied using cyclic and square wave voltammetry in 0.1 M NaOH on a gold electrode. The formation of the inclusion complexes of the dyes was confirmed using UV-Vis and FTIR spectroscopy measurements. Among the studied dyes, according to potentiodynamic measurements, the most active is the dye 1. The inclusion complexes of the dyes exhibited improved electrochemical activity in comparison to the pure dyes. The results obtained by square wave voltammetry show the apparent activity of the dyes with a methoxy group as a substituent at the phenylazo moiety and ethyl and hydroxyethyl groups in the 2-pyridone moiety, and their inclusion complexes. The electrooxidation mechanism of the investigated arylazo pyridone dyes was also proposed.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Electrochimica Acta",
title = "Electrooxidative Behavior of Arylazo Pyridone Dyes and Their Inclusion Complexes on Gold Electrode in 0.1 M NaOH",
pages = "713-705",
volume = "137",
doi = "10.1016/j.electacta.2014.06.048"
}

Mirković, J., Lović, J., Avramov-Ivić, M.,& Mijin, D.. (2014). Electrooxidative Behavior of Arylazo Pyridone Dyes and Their Inclusion Complexes on Gold Electrode in 0.1 M NaOH. in Electrochimica Acta
Pergamon-Elsevier Science Ltd, Oxford., 137, 705-713.
https://doi.org/10.1016/j.electacta.2014.06.048

Mirković J, Lović J, Avramov-Ivić M, Mijin D. Electrooxidative Behavior of Arylazo Pyridone Dyes and Their Inclusion Complexes on Gold Electrode in 0.1 M NaOH. in Electrochimica Acta. 2014;137:705-713.
doi:10.1016/j.electacta.2014.06.048 .

Mirković, Jelena, Lović, Jelena, Avramov-Ivić, Milka, Mijin, Dušan, "Electrooxidative Behavior of Arylazo Pyridone Dyes and Their Inclusion Complexes on Gold Electrode in 0.1 M NaOH" in Electrochimica Acta, 137 (2014):705-713,
https://doi.org/10.1016/j.electacta.2014.06.048 . .

TY  - JOUR
AU  - Lović, Jelena
AU  - Obradović, Maja
AU  - Tripković, Dušan
AU  - Popović, Ksenija
AU  - Jovanović, Vladislava M.
AU  - Gojković, Snežana Lj.
AU  - Tripković, Amalija
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2148
AB  - Formic acid oxidation was studied on a new prepared Pt2Bi characterized by X-ray diffraction spectroscopy (phase composition), scanning tunneling microscopy (STM) (surface morphology), and COads stripping voltammetry (surface composition). Bulk composition of Pt2Bi revealed two phases-55% PtBi alloy and 45% Pt. Estimated contribution of pure Pt on the Pt2Bi surface (43.5%) determined by COads stripping voltammetry corresponds closely to bulk composition. Pt2Bi reveals high activity and stability in formic acid oxidation. High activity originates from the fact that formic acid oxidation proceeds completely through dehydrogenation path based on an ensemble effect. The high stability of Pt2Bi surface is induced by the suppression of Bi leaching as it was evidenced by insignificant changes of surface morphology and surface roughness shown by STM images before and after electrochemical treatment in formic acid containing solution. Pt2Bi is found to be powerful catalyst exhibiting up to two orders of magnitude larger current densities at 0.0 V and onset potential shifted for similar to 0.2 V to more negative value relative to Pt under steady-state condition.
PB  - Springer, New York
T2  - Electrocatalysis
T1  - High Activity and Stability of Pt2Bi Catalyst in Formic Acid Oxidation
EP  - 352
IS  - 3-4
SP  - 346
VL  - 3
DO  - 10.1007/s12678-012-0099-9
ER  - 

@article{
author = "Lović, Jelena and Obradović, Maja and Tripković, Dušan and Popović, Ksenija and Jovanović, Vladislava M. and Gojković, Snežana Lj. and Tripković, Amalija",
year = "2012",
abstract = "Formic acid oxidation was studied on a new prepared Pt2Bi characterized by X-ray diffraction spectroscopy (phase composition), scanning tunneling microscopy (STM) (surface morphology), and COads stripping voltammetry (surface composition). Bulk composition of Pt2Bi revealed two phases-55% PtBi alloy and 45% Pt. Estimated contribution of pure Pt on the Pt2Bi surface (43.5%) determined by COads stripping voltammetry corresponds closely to bulk composition. Pt2Bi reveals high activity and stability in formic acid oxidation. High activity originates from the fact that formic acid oxidation proceeds completely through dehydrogenation path based on an ensemble effect. The high stability of Pt2Bi surface is induced by the suppression of Bi leaching as it was evidenced by insignificant changes of surface morphology and surface roughness shown by STM images before and after electrochemical treatment in formic acid containing solution. Pt2Bi is found to be powerful catalyst exhibiting up to two orders of magnitude larger current densities at 0.0 V and onset potential shifted for similar to 0.2 V to more negative value relative to Pt under steady-state condition.",
publisher = "Springer, New York",
journal = "Electrocatalysis",
title = "High Activity and Stability of Pt2Bi Catalyst in Formic Acid Oxidation",
pages = "352-346",
number = "3-4",
volume = "3",
doi = "10.1007/s12678-012-0099-9"
}

Lović, J., Obradović, M., Tripković, D., Popović, K., Jovanović, V. M., Gojković, S. Lj.,& Tripković, A.. (2012). High Activity and Stability of Pt2Bi Catalyst in Formic Acid Oxidation. in Electrocatalysis
Springer, New York., 3(3-4), 346-352.
https://doi.org/10.1007/s12678-012-0099-9

Lović J, Obradović M, Tripković D, Popović K, Jovanović VM, Gojković SL, Tripković A. High Activity and Stability of Pt2Bi Catalyst in Formic Acid Oxidation. in Electrocatalysis. 2012;3(3-4):346-352.
doi:10.1007/s12678-012-0099-9 .

Lović, Jelena, Obradović, Maja, Tripković, Dušan, Popović, Ksenija, Jovanović, Vladislava M., Gojković, Snežana Lj., Tripković, Amalija, "High Activity and Stability of Pt2Bi Catalyst in Formic Acid Oxidation" in Electrocatalysis, 3, no. 3-4 (2012):346-352,
https://doi.org/10.1007/s12678-012-0099-9 . .

TY  - JOUR
AU  - Stevanović, Sanja
AU  - Tripković, Dušan
AU  - Rogan, Jelena
AU  - Popović, Ksenija
AU  - Lović, Jelena
AU  - Tripković, Amalija
AU  - Jovanović, Vladislava M.
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2173
AB  - High surface area carbon-supported Pt, PtRh, and PtSn catalysts were synthesized by microwave-assisted polyol procedure and tested for ethanol oxidation in perchloric acid. The catalysts were characterized by thermogravimetric analysis (TGA), X-ray diffraction (XRD), scanning tunnelling microscopy (STM), TEM, and EDX techniques. STM analysis of unsupported catalysts shows that small particles (similar to 2 nm) with a narrow size distribution are obtained. TEM and XRD examinations of supported catalysts revealed an increase in particle size upon deposition on carbon support (diameter similar to aEuro parts per thousand 3 nm). The diffraction peaks of the bimetallic catalysts in X-ray diffraction patterns are slightly shifted to lower (PtSn/C) or higher (PtRh/C) 2 theta values with respect to the corresponding peaks at Pt/C catalyst as a consequence of alloy formation. Oxidation of ethanol is significantly improved at PtSn/C with the onset potential shifted for similar to aEuro parts per thousand 150 mV to more negative values and the increase of activity for approximately three times in comparison to Pt/C catalyst. This is the lowest onset potential found for ethanol oxidation at PtSn catalysts with a similar composition. Chronoamperometric measurements confirmed that PtSn/C is notably less poisoned than Pt/C catalyst. PtRh/C catalyst exhibited mild enhancement of overall electrochemical reaction in comparison to Pt/C.
PB  - Springer, New York
T2  - Journal of Solid State Electrochemistry
T1  - Microwave-assisted polyol synthesis of carbon-supported platinum-based bimetallic catalysts for ethanol oxidation
EP  - 3157
IS  - 10
SP  - 3147
VL  - 16
DO  - 10.1007/s10008-012-1755-y
ER  - 

@article{
author = "Stevanović, Sanja and Tripković, Dušan and Rogan, Jelena and Popović, Ksenija and Lović, Jelena and Tripković, Amalija and Jovanović, Vladislava M.",
year = "2012",
abstract = "High surface area carbon-supported Pt, PtRh, and PtSn catalysts were synthesized by microwave-assisted polyol procedure and tested for ethanol oxidation in perchloric acid. The catalysts were characterized by thermogravimetric analysis (TGA), X-ray diffraction (XRD), scanning tunnelling microscopy (STM), TEM, and EDX techniques. STM analysis of unsupported catalysts shows that small particles (similar to 2 nm) with a narrow size distribution are obtained. TEM and XRD examinations of supported catalysts revealed an increase in particle size upon deposition on carbon support (diameter similar to aEuro parts per thousand 3 nm). The diffraction peaks of the bimetallic catalysts in X-ray diffraction patterns are slightly shifted to lower (PtSn/C) or higher (PtRh/C) 2 theta values with respect to the corresponding peaks at Pt/C catalyst as a consequence of alloy formation. Oxidation of ethanol is significantly improved at PtSn/C with the onset potential shifted for similar to aEuro parts per thousand 150 mV to more negative values and the increase of activity for approximately three times in comparison to Pt/C catalyst. This is the lowest onset potential found for ethanol oxidation at PtSn catalysts with a similar composition. Chronoamperometric measurements confirmed that PtSn/C is notably less poisoned than Pt/C catalyst. PtRh/C catalyst exhibited mild enhancement of overall electrochemical reaction in comparison to Pt/C.",
publisher = "Springer, New York",
journal = "Journal of Solid State Electrochemistry",
title = "Microwave-assisted polyol synthesis of carbon-supported platinum-based bimetallic catalysts for ethanol oxidation",
pages = "3157-3147",
number = "10",
volume = "16",
doi = "10.1007/s10008-012-1755-y"
}

Stevanović, S., Tripković, D., Rogan, J., Popović, K., Lović, J., Tripković, A.,& Jovanović, V. M.. (2012). Microwave-assisted polyol synthesis of carbon-supported platinum-based bimetallic catalysts for ethanol oxidation. in Journal of Solid State Electrochemistry
Springer, New York., 16(10), 3147-3157.
https://doi.org/10.1007/s10008-012-1755-y

Stevanović S, Tripković D, Rogan J, Popović K, Lović J, Tripković A, Jovanović VM. Microwave-assisted polyol synthesis of carbon-supported platinum-based bimetallic catalysts for ethanol oxidation. in Journal of Solid State Electrochemistry. 2012;16(10):3147-3157.
doi:10.1007/s10008-012-1755-y .

Stevanović, Sanja, Tripković, Dušan, Rogan, Jelena, Popović, Ksenija, Lović, Jelena, Tripković, Amalija, Jovanović, Vladislava M., "Microwave-assisted polyol synthesis of carbon-supported platinum-based bimetallic catalysts for ethanol oxidation" in Journal of Solid State Electrochemistry, 16, no. 10 (2012):3147-3157,
https://doi.org/10.1007/s10008-012-1755-y . .

TY  - JOUR
AU  - Tripković, Amalija
AU  - Gojković, Snežana Lj.
AU  - Popović, Ksenija
AU  - Lović, Jelena
AU  - Kowal, Andrzej
PY  - 2007
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1147
AB  - Electrochemical oxidation of HCOOH in H2SO4 and HCIO4 solutions was examined on thin film Pt2RU3/C electrode. XRD pattern revealed that Pt2RU3 alloy consisted of the solid solution of Ru in Pt and the small amount of Ru or solid solution of Pt in Ru. According to STM images, Pt2RU3 particles size was between 2 and 6 nm. It was established that electrochemical oxidation of HCOOH commenced at -0.1 V versus SCE at Pt sites in the catalyst. Kinetic parameters indicated that dehydrogenation path was predominant. Dehydration occurs in parallel, but without significant poisoning by COad dowing to oxidative removal by OH species on Ru atoms. The coverage Of Pt2RU3 surface by CO preadsorbed from the solution was found to be 24% lower when the surface was modified by irreversibly adsorbed Bi. Modification by Bi also shifted the onset potential for HCOOH oxidation for about 50 m V towards more negative values and consequently, increased the reaction rate for a factor of two. It was proposed that Ru acts through bifunctional mechanism, i.e. OH species adsorbed on Ru oxidizes COad from Pt sites, while Bi hinders the adsorption of CO on Pt sites via electronic and/or ensemble effects.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Electrochimica Acta
T1  - Study of the kinetics and the influence of Bi-irr, on formic acid oxidation at Pt2RU3/C
EP  - 893
IS  - 2
SP  - 887
VL  - 53
DO  - 10.1016/j.electacta.2007.07.073
ER  - 

@article{
author = "Tripković, Amalija and Gojković, Snežana Lj. and Popović, Ksenija and Lović, Jelena and Kowal, Andrzej",
year = "2007",
abstract = "Electrochemical oxidation of HCOOH in H2SO4 and HCIO4 solutions was examined on thin film Pt2RU3/C electrode. XRD pattern revealed that Pt2RU3 alloy consisted of the solid solution of Ru in Pt and the small amount of Ru or solid solution of Pt in Ru. According to STM images, Pt2RU3 particles size was between 2 and 6 nm. It was established that electrochemical oxidation of HCOOH commenced at -0.1 V versus SCE at Pt sites in the catalyst. Kinetic parameters indicated that dehydrogenation path was predominant. Dehydration occurs in parallel, but without significant poisoning by COad dowing to oxidative removal by OH species on Ru atoms. The coverage Of Pt2RU3 surface by CO preadsorbed from the solution was found to be 24% lower when the surface was modified by irreversibly adsorbed Bi. Modification by Bi also shifted the onset potential for HCOOH oxidation for about 50 m V towards more negative values and consequently, increased the reaction rate for a factor of two. It was proposed that Ru acts through bifunctional mechanism, i.e. OH species adsorbed on Ru oxidizes COad from Pt sites, while Bi hinders the adsorption of CO on Pt sites via electronic and/or ensemble effects.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Electrochimica Acta",
title = "Study of the kinetics and the influence of Bi-irr, on formic acid oxidation at Pt2RU3/C",
pages = "893-887",
number = "2",
volume = "53",
doi = "10.1016/j.electacta.2007.07.073"
}

Tripković, A., Gojković, S. Lj., Popović, K., Lović, J.,& Kowal, A.. (2007). Study of the kinetics and the influence of Bi-irr, on formic acid oxidation at Pt2RU3/C. in Electrochimica Acta
Pergamon-Elsevier Science Ltd, Oxford., 53(2), 887-893.
https://doi.org/10.1016/j.electacta.2007.07.073

Tripković A, Gojković SL, Popović K, Lović J, Kowal A. Study of the kinetics and the influence of Bi-irr, on formic acid oxidation at Pt2RU3/C. in Electrochimica Acta. 2007;53(2):887-893.
doi:10.1016/j.electacta.2007.07.073 .

Tripković, Amalija, Gojković, Snežana Lj., Popović, Ksenija, Lović, Jelena, Kowal, Andrzej, "Study of the kinetics and the influence of Bi-irr, on formic acid oxidation at Pt2RU3/C" in Electrochimica Acta, 53, no. 2 (2007):887-893,
https://doi.org/10.1016/j.electacta.2007.07.073 . .

TY  - JOUR
AU  - Tripković, Amalija
AU  - Gojković, Snežana Lj.
AU  - Popović, Ksenija
AU  - Lović, Jelena
PY  - 2006
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/954
AB  - Methanol oxidation in acid solution was studied at platinum single crystals, Pt(hkl), as the model catalyst, and at nanostructural platinum supported on high surface area carbon, Pt/C, as the real catalyst. The linear extrapolation method was used to determine the beginning of hydroxyl anion adsorption. Structural sensitivity of the adsorption was proved and a correlation with the onset of the methanol oxidation current was established at all catalysts. Bisulfate and chloride anions were found to decrease the methanol oxidation rate, but probably did not influence the reaction parth. The specific activity for the reaction increased in the sequence Pt(110)  lt Pt/C  lt  Pt(111), suggesting that the activity of the supported Pt catalyst can be correlated with the activities of the dominating crystal planes on its surface.
AB  - Oksidacija metanola ispitivana je na niskoindeksnim Pt monokristalnim elektrodama (model katalizator) i na nanokatalizatoru Pt dispergovanom na aktivnom uglju kao nosaču (realni katalizator) u kiseloj sredini. Metoda linearne ekstrapolacije krivih zavisnosti količine naelektrisanja adsorpcije kiseoničnih čestica od potencijala korišćena je za određivanje početka adsorpcije OH anjona. Potvrđeno je da je adsorpcija OH čestica strukturno osetljiva reakcija i pokazana je korelacija sa početkom reakcije oksidacije metanola. Utvrđeno je da bisulfatni i hloridni anjoni iz nosećeg elektrolita smanjuju brzinu oksidacije metanola, ali verovatno ne utiču na reakcioni put. Elektrokatalitička aktivnost ispitivanih katalizatora rasla je u nizu Pt(110)  lt  Pt/C  lt  Pt(111) ukazujući na to da se aktivnost Pt nanokatalizatora može povezati sa udelima niskoindeksnih ravni na površini Pt nanočestice.
PB  - Serbian Chemical Society, Belgrade
T2  - Journal of the Serbian Chemical Society
T1  - Methanol oxidation at platinum electrodes in acid solution: Comparison between model and real catalysts
T1  - Oksidacija metanola na platinskim elektrodama u kiseloj sredini - poređenje model i realnih katalizatora
EP  - 1343
IS  - 12
SP  - 1333
VL  - 71
UR  - https://hdl.handle.net/21.15107/rcub_technorep_954
ER  - 

@article{
author = "Tripković, Amalija and Gojković, Snežana Lj. and Popović, Ksenija and Lović, Jelena",
year = "2006",
abstract = "Methanol oxidation in acid solution was studied at platinum single crystals, Pt(hkl), as the model catalyst, and at nanostructural platinum supported on high surface area carbon, Pt/C, as the real catalyst. The linear extrapolation method was used to determine the beginning of hydroxyl anion adsorption. Structural sensitivity of the adsorption was proved and a correlation with the onset of the methanol oxidation current was established at all catalysts. Bisulfate and chloride anions were found to decrease the methanol oxidation rate, but probably did not influence the reaction parth. The specific activity for the reaction increased in the sequence Pt(110)  lt Pt/C  lt  Pt(111), suggesting that the activity of the supported Pt catalyst can be correlated with the activities of the dominating crystal planes on its surface., Oksidacija metanola ispitivana je na niskoindeksnim Pt monokristalnim elektrodama (model katalizator) i na nanokatalizatoru Pt dispergovanom na aktivnom uglju kao nosaču (realni katalizator) u kiseloj sredini. Metoda linearne ekstrapolacije krivih zavisnosti količine naelektrisanja adsorpcije kiseoničnih čestica od potencijala korišćena je za određivanje početka adsorpcije OH anjona. Potvrđeno je da je adsorpcija OH čestica strukturno osetljiva reakcija i pokazana je korelacija sa početkom reakcije oksidacije metanola. Utvrđeno je da bisulfatni i hloridni anjoni iz nosećeg elektrolita smanjuju brzinu oksidacije metanola, ali verovatno ne utiču na reakcioni put. Elektrokatalitička aktivnost ispitivanih katalizatora rasla je u nizu Pt(110)  lt  Pt/C  lt  Pt(111) ukazujući na to da se aktivnost Pt nanokatalizatora može povezati sa udelima niskoindeksnih ravni na površini Pt nanočestice.",
publisher = "Serbian Chemical Society, Belgrade",
journal = "Journal of the Serbian Chemical Society",
title = "Methanol oxidation at platinum electrodes in acid solution: Comparison between model and real catalysts, Oksidacija metanola na platinskim elektrodama u kiseloj sredini - poređenje model i realnih katalizatora",
pages = "1343-1333",
number = "12",
volume = "71",
url = "https://hdl.handle.net/21.15107/rcub_technorep_954"
}

Tripković, A., Gojković, S. Lj., Popović, K.,& Lović, J.. (2006). Methanol oxidation at platinum electrodes in acid solution: Comparison between model and real catalysts. in Journal of the Serbian Chemical Society
Serbian Chemical Society, Belgrade., 71(12), 1333-1343.
https://hdl.handle.net/21.15107/rcub_technorep_954

Tripković A, Gojković SL, Popović K, Lović J. Methanol oxidation at platinum electrodes in acid solution: Comparison between model and real catalysts. in Journal of the Serbian Chemical Society. 2006;71(12):1333-1343.
https://hdl.handle.net/21.15107/rcub_technorep_954 .

Tripković, Amalija, Gojković, Snežana Lj., Popović, Ksenija, Lović, Jelena, "Methanol oxidation at platinum electrodes in acid solution: Comparison between model and real catalysts" in Journal of the Serbian Chemical Society, 71, no. 12 (2006):1333-1343,
https://hdl.handle.net/21.15107/rcub_technorep_954 .

TY  - JOUR
AU  - Lović, Jelena
AU  - Gojković, Snežana Lj.
AU  - Popović, Ksenija
AU  - Tripković, D. V.
AU  - Tripković, Amalija
PY  - 2006
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/987
AB  - Formic acid oxidation was studied at low-index Pt single crystals (model systems) as well as at the platinum catalyst supported on high area carbon (real catalyst) in HClO4. The Pt single crystals were characterized by LEED. The LEED patterns obtained after a mild heating of flame-annealed crystals have shown clean, well ordered unreconstructured surfaces. Pt-C supported catalyst was analyzed by AFM and STM in air and by XRD. AFM and STM images revealed the presence of Pt-C agglomerates of several tenth of nm consisting of Pt particles ranged from 2 nm to 6 nm. The electrocatalytic activity of these catalysts in formic acid oxidation increased in a sequence: Pt(100)  lt  Pt(110)  lt  Pt-C/GC  lt  Pt(111).
PB  - Trans Tech Publications Ltd, Durnten-Zurich
T2  - Recent Developments in Advanced Materials and Processes
T1  - Structural effects in electrocatalysis: Formic acid oxidation at model and real Pt catalysts
EP  - 264
SP  - 259
VL  - 518
DO  - 10.4028/www.scientific.net/MSF.518.259
ER  - 

@article{
author = "Lović, Jelena and Gojković, Snežana Lj. and Popović, Ksenija and Tripković, D. V. and Tripković, Amalija",
year = "2006",
abstract = "Formic acid oxidation was studied at low-index Pt single crystals (model systems) as well as at the platinum catalyst supported on high area carbon (real catalyst) in HClO4. The Pt single crystals were characterized by LEED. The LEED patterns obtained after a mild heating of flame-annealed crystals have shown clean, well ordered unreconstructured surfaces. Pt-C supported catalyst was analyzed by AFM and STM in air and by XRD. AFM and STM images revealed the presence of Pt-C agglomerates of several tenth of nm consisting of Pt particles ranged from 2 nm to 6 nm. The electrocatalytic activity of these catalysts in formic acid oxidation increased in a sequence: Pt(100)  lt  Pt(110)  lt  Pt-C/GC  lt  Pt(111).",
publisher = "Trans Tech Publications Ltd, Durnten-Zurich",
journal = "Recent Developments in Advanced Materials and Processes",
title = "Structural effects in electrocatalysis: Formic acid oxidation at model and real Pt catalysts",
pages = "264-259",
volume = "518",
doi = "10.4028/www.scientific.net/MSF.518.259"
}

Lović, J., Gojković, S. Lj., Popović, K., Tripković, D. V.,& Tripković, A.. (2006). Structural effects in electrocatalysis: Formic acid oxidation at model and real Pt catalysts. in Recent Developments in Advanced Materials and Processes
Trans Tech Publications Ltd, Durnten-Zurich., 518, 259-264.
https://doi.org/10.4028/www.scientific.net/MSF.518.259

Lović J, Gojković SL, Popović K, Tripković DV, Tripković A. Structural effects in electrocatalysis: Formic acid oxidation at model and real Pt catalysts. in Recent Developments in Advanced Materials and Processes. 2006;518:259-264.
doi:10.4028/www.scientific.net/MSF.518.259 .

Lović, Jelena, Gojković, Snežana Lj., Popović, Ksenija, Tripković, D. V., Tripković, Amalija, "Structural effects in electrocatalysis: Formic acid oxidation at model and real Pt catalysts" in Recent Developments in Advanced Materials and Processes, 518 (2006):259-264,
https://doi.org/10.4028/www.scientific.net/MSF.518.259 . .

TY  - JOUR
AU  - Lović, Jelena
AU  - Tripković, Amalija
AU  - Gojković, Snežana Lj.
AU  - Popović, Ksenija
AU  - Tripković, Dušan
AU  - Olszewski, Piotr K.
AU  - Kowal, Andrzej
PY  - 2005
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/781
AB  - Oxidation of formic acid on the platinum catalyst supported on high area carbon was investigated by potent iodynamic and quasi-steady-state polarization measurements. It was found that the poisoning of the reaction occurred both in the hydrogen region and in the double-layer region, but poisons were formed faster at lower potentials. Kinetics of the reaction was consistent with the dual path mechanism. At lower potentials HCOOH was oxidized to CO, at the Pt sites uncovered by COads. If high coverage by the poisoning species was attained, the reaction reached the limiting current plateau and further increase of the Current densities started at the potential of COads oxidation. Kinetic parameters of the HCOOH oxidation suggested that the rate determining step was the transfer of the first electron from HCOOHads, which was adsorbed under the Temkin conditions, Oxidation of formic acid became pH-dependent reaction in the electrolytes of pH  lt  1 with the reaction order with respect to H+ ions of about - 0.8.
PB  - Elsevier Science Sa, Lausanne
T2  - Journal of Electroanalytical Chemistry
T1  - Kinetic study of formic acid oxidation on carbon-supported platinum electrocatalyst
EP  - 302
IS  - 2
SP  - 294
VL  - 581
DO  - 10.1016/j.jelechem.2005.05.002
ER  - 

@article{
author = "Lović, Jelena and Tripković, Amalija and Gojković, Snežana Lj. and Popović, Ksenija and Tripković, Dušan and Olszewski, Piotr K. and Kowal, Andrzej",
year = "2005",
abstract = "Oxidation of formic acid on the platinum catalyst supported on high area carbon was investigated by potent iodynamic and quasi-steady-state polarization measurements. It was found that the poisoning of the reaction occurred both in the hydrogen region and in the double-layer region, but poisons were formed faster at lower potentials. Kinetics of the reaction was consistent with the dual path mechanism. At lower potentials HCOOH was oxidized to CO, at the Pt sites uncovered by COads. If high coverage by the poisoning species was attained, the reaction reached the limiting current plateau and further increase of the Current densities started at the potential of COads oxidation. Kinetic parameters of the HCOOH oxidation suggested that the rate determining step was the transfer of the first electron from HCOOHads, which was adsorbed under the Temkin conditions, Oxidation of formic acid became pH-dependent reaction in the electrolytes of pH  lt  1 with the reaction order with respect to H+ ions of about - 0.8.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Journal of Electroanalytical Chemistry",
title = "Kinetic study of formic acid oxidation on carbon-supported platinum electrocatalyst",
pages = "302-294",
number = "2",
volume = "581",
doi = "10.1016/j.jelechem.2005.05.002"
}

Lović, J., Tripković, A., Gojković, S. Lj., Popović, K., Tripković, D., Olszewski, P. K.,& Kowal, A.. (2005). Kinetic study of formic acid oxidation on carbon-supported platinum electrocatalyst. in Journal of Electroanalytical Chemistry
Elsevier Science Sa, Lausanne., 581(2), 294-302.
https://doi.org/10.1016/j.jelechem.2005.05.002

Lović J, Tripković A, Gojković SL, Popović K, Tripković D, Olszewski PK, Kowal A. Kinetic study of formic acid oxidation on carbon-supported platinum electrocatalyst. in Journal of Electroanalytical Chemistry. 2005;581(2):294-302.
doi:10.1016/j.jelechem.2005.05.002 .

Lović, Jelena, Tripković, Amalija, Gojković, Snežana Lj., Popović, Ksenija, Tripković, Dušan, Olszewski, Piotr K., Kowal, Andrzej, "Kinetic study of formic acid oxidation on carbon-supported platinum electrocatalyst" in Journal of Electroanalytical Chemistry, 581, no. 2 (2005):294-302,
https://doi.org/10.1016/j.jelechem.2005.05.002 . .